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: One of the most prolific of the "Who IS that?"school of character actors, Dabbs Greer has been playing small-town doctors, bankers, merchants, druggists, mayors and ministers since at least 1950. His purse-lipped countenance and Midwestern twang was equally effective in taciturn villainous roles. Essentially a bit player in films of the 1950s (Diplomatic Courier, Deadline USA, Living It Up), Greer was given more screen time than usual as a New York detective in House of Wax (1953), while his surface normality served as excellent contrast to the extraterrestrial goings-on in Invasion of the Body Snatchers (1956) and It! The Terror from Beyond Space. A television actor since the dawn of the cathode-tube era, Greer has shown up in hundreds of TV supporting roles, including the "origin" episode of the original Superman series, in which he played the dangling dirigible worker rescued in mid-air by the Man of Steel. Greer also played the recurring roles of storekeeper Mr. Jones on Gunsmoke (1955-60) and Reverend Robert Alden on Little House on the Prairie (1974-83). Showing no signs of slowing down, Dabbs Greer continued accepting roles in such films as Two Moon Junction (1988) and Pacific Heights (1990) into the '90s. He died following a battle with kidney and heart disease, on April 28, 2007, not quite a month after his 90th birthday.

Trivia: Tall, straight-laced American actor Robert Culp parlayed his appearance and demeanor into a series of clean-cut character roles, often (though not always) with a humorous, mildly sarcastic edge. He was perhaps best known for three accomplishments: his turn as a Southern California documentary filmmaker who decides, along with his wife (Natalie Wood) to suddenly go counterculture with an "open marriage" in Paul Mazursky's Bob & Carol & Ted & Alice (1969); his iconic three-season role as an undercover agent in the espionage-themed series I Spy (1965-8); and his three-season run as Bill Maxwell on Stephen Cannell's superhero spoof series The Greatest American Hero (1981-3). Born in Oakland, California in 1930, Culp attended several West Coast colleges while training for a dramatic career. At 21, he made his Broadway debut in He Who Gets Slapped. Within six years, he was starring in his own Friday night CBS Western, Trackdown (1957-9) as Hoby Gilman, an 1870s era Texas Ranger. During the two-year run of this program, Culp began writing scripts, a habit he'd carry over to other series, notably The Rifleman and Gunsmoke. These all represented fine and noble accomplishments for a young actor, but as indicated, I Spy delivered a far greater impact to the young actor's career: it made Culp (along with his co-star, Bill Cosby) a bona fide celebrity. The men co-starred in the NBC adventure yarn as, respectively, Kelly Robinson and Alexander Scott, undercover agents involved in globetrotting missions for the U.S. government. Both actors brought to the program a sharp yet subtle sense of humor that (coupled with its exotic locations) made it one of the major discoveries of the 1965-6 prime-time line-up. During the second of I Spy's three seasons, Culp made his directorial debut by helming episodes of Spy; he went on to direct installments of several other TV programs. The success of Bob & Carol at the tail end of the 1960s proved that Culp could hold his own as a movie star, and he later directed and co-starred in 1972 theatrical feature Hickey and Boggs, which reunited him with Cosby, albeit to much lesser acclaim. Unfortunately, as the years rolled on, Culp proved susceptible to the lure of parts in B-pictures, such as Sky Riders (1976), Flood! (1976) and Hot Rod (1979), though he delivered a fine portrayal in television's critically-acclaimed Roots: The Next Generations (1979). Culp rebounded further with the semicomic role of CIA chief Maxwell on American Hero, but many now-infamous behind-the-scenes issues (and external issues, such as the shooting of Ronald Reagan) beleaguered that program and ended its run after only three seasons. In the years that followed, Culp vacillated between exploitation roles, in tripe such as Big Bad Mama 2 and Silent Night, Deadly Night 3, and more respectable, mainstream guest turns in television series including The Cosby Show and Murder, She Wrote. He enjoyed one of his most prestigious assignments with a supporting role in the big screen John Grisham-Alan Pakula thriller The Parallax View (1993), opposite Denzel Washington and Julia Roberts. In the years that followed, Culp's on-camera presence grew less and less frequent, though he did make a cameo in the 1996 Leslie Nielsen laugher Spy Hard. Television continued to provide some of Culp's finest work: he rejoined old friend Cosby for a 1994 I Spy TV-movie reunion and made guest appearances in such series as Lonesome Dove, Law & Order and The Dead Zone. Following a period of semi-retirement, Culp died suddenly and rather arbitrarily, when he sustained a head injury during a fall outside of his Hollywood home in March 2010. He was 79 years old.

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: Scotland-born John Graham played supporting roles in numerous British productions of stage, screen, television and radio. He also appeared in documentaries and was a screenwriter, television writer and a playwright.