Trivia: Big, burly Dan Blocker only did a handful of movies in his 17-year acting career, but he became one of the most beloved and popular television stars of the 1960s for his portrayal of Hoss Cartwright on the Western series Bonanza. Weighing 14 pounds at birth, Blocker was the largest baby ever born in Bowie County, TX. At 18, he stood 6'3" and weighed close to 300 pounds, and was legendary for his physical prowess. Blocker attended the Texas Military Institute and studied for his B.A. at Sul Ross State College, where he initially majored in athletics. His build accidentally led him to the drama department for a production of Arsenic and Old Lace -- a stage hand was needed who was big and strong enough to quickly remove the dummies representing corpses on the set, between acts. While working on the production, Blocker was bitten by the acting bug and switched his major to drama. He pursued his theatrical aspirations in earnest after graduation, working in one season of summer stock before he was drafted. Blocker served in combat during the Korean War, after which he earned a master's degree, married, moved to Los Angeles, and settled down to raise a family, earning his living as a high school teacher. It was his successful audition for the small role of a cavalry lieutenant on Gunsmoke during the 1956 season, in the episode "Alarm at Pleasant Valley," that rekindled Blocker's interest in an acting career. Over the next three years, he took any work that he could get, on programs like Sgt. Preston of the Yukon, Cheyenne, Tales of Wells Fargo, Zane Grey Theater, Wagon Train, Colt .45, Zorro, Maverick, and Richard Diamond, Private Detective. Blocker also got some movie work, portraying a bartender in the offbeat murder mystery The Girl in Black Stockings and an android in Outer Space Jitters, a very late Three Stooges short. His career took an upturn when he got a guest-starring role in an episode of the series The Restless Gun, starring John Payne, in 1958; his work was good enough to catch the attention of the producer, David Dortort. A year later, Dortort was putting together a new, hour-long Western series called Bonanza and cast Blocker in the role of "Hoss" Cartwright, the big-boned, good-natured middle son in a ranching family near Virginia City, NV, set in the mid- to late 19th century (the time frame of Bonanza was always vague, with stories shifting between the early 1860s to the 1870s and 1880s). Blocker's character's real name, incidentally, was Eric, but Hoss -- a nickname from his mother's Norwegian language that meant "friend" -- was what he was known as to everyone on the series and all viewers. Despite the weaknesses in the scripts during the early seasons, the role was a dream part for the actor, who got a chance to display his gentle, sensitive side as well as his gift for comedy, and also work in a serious dramatic context as well on many occasions, and show off his brute strength as well. It is arguable that Blocker was the most popular member of the cast during the 1960s; he was especially beloved of younger viewers, in part because his character was always very sympathetic to children. In contrast to the other stars of the series, Blocker's big-screen career wasn't halted by his work on Bonanza. He appeared in The Errand Boy, playing himself in an uncredited cameo, and played a role in the Frank Sinatra movie Come Blow Your Horn. Blocker got his first major movie part five years later in the Sinatra film Lady in Cement (1968), playing Waldo Gronsky, a burly, potentially murderous thug who hires private detective Tony Rome (played by Sinatra) to find his missing girlfriend. By the end of the 1960s, Blocker was taken seriously enough as an actor to star in two features, Something for a Lonely Man, a beautiful and poignant Western/comedy-drama, and the broader comedy The Cockeyed Cowboys of Calico County. Some of Blocker's television appearances separate from Bonanza also reflected his personal side -- his politics were essentially liberal Democratic (in sharp contrast to the conservative Republican sympathies of his co-stars Michael Landon and Lorne Greene), and he appeared in several public service announcements promoting brotherhood and racial tolerance, as well as on one television special that gently satirized American popular culture, starring Henry Fonda. He was also part of the liberal contingent in the 1971 John Wayne-hosted patriotic special Swing Out, Sweet Land. In 1972, Blocker was chosen for what could have been the breakthrough role to a major movie career, when he won the part of Roger Wade, the has-been author in Robert Altman's revisionist detective movie The Long Goodbye. In May of that year, however, he went into the hospital for routine gall bladder surgery, and during recovery he died suddenly of a blood clot in his lung. Sterling Hayden replaced Blocker in The Long Goodbye, which was dedicated to the actor's memory. Blocker's passing, immediately before the shooting for the 1972-1973 season of Bonanza was to begin, signed the death knell for the series. The cast and crew were genuinely shaken by his sudden death; scripts had to be hastily rewritten to explain the passing of Hoss Cartwright, and Blocker's absence and the reason behind it removed any element of lightheartedness that the series had displayed. The final season, despite the best efforts of surviving stars Lorne Greene, Michael Landon, and David Canary, was characterized by grim, downbeat stories and a dark mood that seemed to repel longtime viewers. Coupled with this change in tone, the NBC network moved Bonanza from its longtime Sunday nighttime slot to Tuesday nights, where it died a quick death, cancellation coming halfway through the 1972-1973 season. Blocker left behind a wife and four children, among them actor Dirk Blocker and director/producer David Blocker. He also left behind a legacy of good will that survives to this day, as Bonanza is in perpetual reruns on various cable channels, decades after its cancellation. Significantly, the final season, in which he did not appear, is the body of episodes that is shown (and requested) the least of its 14 years' worth of programs.

Trivia: Pernell Roberts worked such odd jobs as butcher, forest ranger and tombstone-maker while studying acting and singing and scouting around for off-Broadway jobs. Roberts' film debut, in a characteristic Deep Brooder role, was in 1958's Desire Under the Elms. From 1959 through 1966, Roberts co-starred as black-clad, taciturn Adam Cartwright on Bonanza. "Aloof, rebellious and outspoken" was how Bonanza producer David Dotort summed up Roberts, who fought tooth and nail over every real or imagined challenge to his integrity (his biggest beef was that he had to call Lorne Greene "Pa" rather than "Father"). Fed up with what he perceived as the series' declining quality, Roberts left Bonanza in 1966; it was explained to fans that "Adam" had left to study at a European university. Free of his TV series commitment, Roberts returned to his first love, the stage--and also divested himself of the toupee he'd been forced to wear as Adam. The actor played the straw-hat circuit in such musicals as Camelot and The King and I, all the while accepting film and TV roles that came up to his standards. Unfortunately, his stubbornness and standoffishness left a sour taste with co-workers and fans alike, and Roberts was unable to soar to the artistic heights to which he aspired. After years of declaring that he'd never again return to the grind of weekly television, Roberts accepted the role of Dr. "Trapper" John McIntyre, chief of surgery at San Francisco memorial hospital, in the seven-season (1979-86) M*A*S*H spin-off Trapper John MD. In 1991 Pernell Roberts assumed the hosting duties of the TV anthology FBI: The Untold Stories.

Trivia: The son of a Jewish movie-publicist father and an Irish Catholic musical-comedy actress, Michael Landon grew up in a predominantly Protestant New Jersey neighborhood. The social pressures brought to bear on young Michael, both at home and in the schoolyard, led to an acute bedwetting problem, which he would later dramatize (very discreetly) in the 1976 TV movie The Loneliest Runner. Determined to better his lot in life, Landon excelled in high school athletics; his prowess at javelin throwing won him a scholarship at the University of Southern California, but a torn ligament during his freshman year ended his college career. Taking a series of manual labor jobs, Landon had no real direction in life until he agreed to help a friend audition for the Warners Bros. acting school. The friend didn't get the job, but Landon did, launching a career that would eventually span nearly four decades. Michael's first film lead was in the now-legendary I Was a Teenage Werewolf (1957), widely derided at the time but later reassessed as one of the better examples of the late-'50s "drive-in horror" genre. The actor received his first good reviews for his performance as an albino in God's Little Acre. This led to his attaining the title role in 1959's The Legend of Tom Dooley, which in turn was instrumental in his being cast as Little Joe Cartwright on the popular TV western Bonanza. During his fourteen-year Bonanza stint, Landon was given the opportunity to write and direct a few episodes. He carried over these newfound skills into his next TV project, Little House on the Prairie, which ran from 1974 to 1982 (just before Little House, Landon made his TV-movie directorial bow with It's Good to Be Alive, the biopic of baseball great Roy Campanella). Landon also oversaw two spinoff series, Little House: The New Beginning (1982-83) and Father Murphy (1984). Landon kept up his career momentum with a third long-running TV series, Highway to Heaven (1984-89) wherein the actor/producer/director/writer played guardian angel Jonathan Smith. One of the most popular TV personalities of the '70s and '80s, Landon was not universally beloved by his Hollywood contemporaries, what with his dictatorial on-set behavior and his tendency to shed his wives whenever they matured past childbearing age. Still, for every detractor, there was a friend, family member or coworker who felt that Landon was the salt of the earth. In early 1991, Landon began work on his fourth TV series, Us, when he began experiencing stomach pains. In April of that same year, the actor was informed that he had inoperable pancreatic cancer. The courage and dignity with which Michael Landon lived his final months on earth resulted in a public outpouring of love, affection and support, the like of which was seldom witnessed in the cynical, self-involved '90s. Michael Landon died in his Malibu home on July 1, 1991, with his third wife Cindy at his side.

Trivia: The son of a Boston barber, Leonard Nimoy was a star at the age of 8, when he played Hansel in a children's theatre production of Hansel and Gretel. Nimoy remained with his local kiddie theater troupe until 16 (one of his directors during this period was Boris Sagal). After studying drama at Boston College and Antioch College, he took acting lessons from Jeff Corey at the Pasadena Playhouse. In films from 1950, Nimoy played the title character in the low-budget Kid Monk Baroni and essayed bits and minor roles in such productions as Zombies of the Stratosphere (1951), Rhubarb (1951) and Them! (1954). In between acting assignments, he held down a dizzying variety of jobs: soda jerk, newspaper carrier, vacuum-cleaner salesman, vending machine mechanic, pet-shop clerk, cabbie and acting coach. During his 18 months in Special Services at Fort McPherson, Georgia, he acted with Atlanta Theater Guild when he could spare the time. Back in Hollywood in 1956, he became virtually a regular at the Ziv TV studios, playing villains in programs like Highway Patrol and Sea Hunt. For a short while, he specialized in the plays of Jean Genet, appearing in both the stage and film productions of The Balcony and Deathwatch. Impressed by Nimoy's guest turn on a 1963 episode of The Lieutenant, producer Gene Roddenberry vowed to cast the saturnine, mellow-voiced actor as an extraterrestrial if ever given the chance. That chance came two years later, when Roddenberry signed Nimoy to play Vulcanian science officer Spock on Star Trek. At first pleased at the assignment, Nimoy came to resent the apparent fact that the public perceived him as Spock and nothing else: indeed, one of his many written works was the slim autobiography I Am Not Spock. After Star Trek's cancellation, Nimoy joined the cast of Mission: Impossible in the role of "master of disguise" Paris (he replaced the series' previous master of disguise Martin Landau, who ironically had originally been slated to play Spock). In the early 1970s, Nimoy began racking up directorial credits on such series as Night Gallery. He also made his first Broadway appearance in 1973's Full Circle. And, perhaps inevitably, he returned to Spock, thanks to the popular demand engendered by the then-burgeoning Star Trek cult. His initial reacquaintance with the role was as voiceover artist on the 1973 Saturday-morning cartoon version of Star Trek. Then Spock went on the back burner again as Nimoy devoted himself to his theatrical commitments (a touring production of Sherlock Holmes, his one-man show Vincent), his writing and directing activities, and his hosting chores on the long-running (1976-82) TV documentary series In Search Of.... Finally in 1978, Nimoy was back in his Enterprise uniform in the first of several Star Trek theatrical features. The Spock character was killed off in the second Trek picture The Wrath of Khan, but Nimoy stayed with the franchise as director of the next two feature-length Trek entries (PS: Spock also came back to life). He went on to direct such non-Trek filmic endeavors as 3 Men and a Baby (1987), The Good Mother (1988), Funny About Love (1990) and Holy Matrimony (1994). He also produced and acted in the 1991 TV movie Never Forget, and served as executive producer of the 1995 UPN network series Deadly Games. Perhaps because he will always have dozens of professional irons in the fire, Leonard Nimoy now seems resigned to being forever associated with the role that brought him international fame; his most recent autobiographical work was aptly titled I Am Spock. In 2009 he returned to his iconic role portraying Spock in J.J. Abrams smash-hit reboot of the Star Trek franchise. He next took on a recurring role in the sci-fi series Fringe, playing scientist William Bell. Nimoy made a final cameo appearance in Star Trek Into Darkness (2013). He died in 2015, at age 83.

Trivia: White-haired, patriarchal Canadian actor Lorne Greene attended Queen's University in pursuit of a chemical engineering degree. Amateur college theatricals whetted his appetite for the stage, and upon graduation he decided upon a performing career. He started out on radio, eventually emerging as Canada's top newscaster, designated "the voice of the CBC" (For a while, Greene managed a mail-order announcer's school; one of the "pupils" was Leslie Nielsen). Moving to New York in 1950, Greene became a stage, film and TV actor, co-starring on Broadway with Katherine Cornell in Prescott Proposals and in films with the likes of Paul Newman, Ginger Rogers and Joan Crawford, generally in villainous roles. In 1959, Greene was cast as Ben Cartwright, owner of the Ponderosa ranch and father of three headstrong sons, in TV's Bonanza. He would hold down this job until 1972; during the series' run, Greene unexpectedly became a top-ten recording artist with his hit single "Ringo." Upon the cancellation of Bonanza, Greene vowed he'd retire, but within one year he was playing a private detective on the brief TV weekly Griff. Five years later, he starred on the network sci-fier Battlestar Gallactica. Active as chairman of the National Wildlife Foundation, Greene put forth the organization's doctrine in his popular syndicated TV series Lorne Greene's Last of the Wild. His final weekly television appearance was on the 1980 adventure series Code Red. In 1987, Lorne Greene was all set to recreate Ben Cartwright for the 2-hour TV movie Bonanza: The Next Generation, but he died before shooting started and was replaced by John Ireland.

Trivia: Possessor of one of the meanest faces in the movies, American actor Ray Teal spent much of his film career heading lynch mobs, recruiting for hate organizations and decimating Indians. Naturally, anyone this nasty in films would have to conversely be a pleasant, affable fellow in real life, and so it was with Teal. Working his way through college as a saxophone player, Teal became a bandleader upon graduation, remaining in the musical world until 1936. In 1938, Teal was hired to act in the low-budget Western Jamboree, and though he played a variety of bit parts as cops, taxi drivers and mashers, he seemed more at home in Westerns. Teal found it hard to shake his bigoted badman image even in A-pictures; as one of the American jurists in Judgment at Nuremberg (1961), he is the only member of Spencer Tracy's staff that feels that sympathy should be afforded Nazi war criminals -- and the only one on the staff who openly dislikes American liberals. A more benign role came Teal's way on the '60s TV series Bonanza, where he played the sometimes ineffectual but basically decent Sheriff Coffee. Ray Teal retired from films shortly after going through his standard redneck paces in The Liberation of LB Jones (1970).

Trivia: The son of vaudeville monologist Julius Tannen, Charles Tannen launched his own film career in 1936. For the rest of his movie "life," Tannen was most closely associated with 20th Century Fox, playing minor roles in films both large (John Ford's The Grapes of Wrath) and not so large (Laurel and Hardy's Great Guns). Rarely receiving screen credit, Tannen continued playing utility roles well into the 1960s, showing up in such Fox productions as The Fly (1958) and Voyage to the Bottom of the Sea (1961). Charles Tannen's older brother, William, was also an active film performer during this period.