Trivia: Guy Williams never became a movie star despite his good looks and a charismatic screen presence, but on television he was a star twice over, in the 1960s as Professor John Robinson on the Irwin Allen-produced series Lost in Space and, for those with longer memories, in the title role of the Walt Disney-produced series Zorro; he also cut a memorable presence in a series of episodes of Bonanza during the early '60s, as a cousin of the Cartwrights from south of the border. Born Armando Catalano in New York City, he was the son of one of Italy's champion swordsmen, and he was an expert fencer himself by the time he was in his teens. His good looks made him a natural as a model, and he appeared in numerous newspapers and magazines during the early to mid-'40s. In 1946, at the age of 23, he was signed to MGM, but the studio's declining postwar period proved a dead end of tiny bit roles that went nowhere. He studied acting with Sanford Meisner and was serious about being more than a model who could read lines, but it wasn't until the 1950s that he got his chance. In 1952, Williams was signed to Universal-International, where he finally began getting some respectable screen time, once he got past his initial Universal appearance, in Bonzo Goes to College and a thankless role in Nathan Juran's swashbuckler The Golden Blade. In The Mississippi Gambler (1953), The Man From the Alamo (1953), and The Last Frontier (1956), Williams played small to medium-sized supporting roles that showed him off to good advantage as an actor. His career seems to have stalled at the point where he appeared in American International Pictures' release of I Was a Teenage Werewolf (1957). In 1957, however, Williams became a star on television when he was chosen to play the title role in the Disney television series Zorro. It was only in production for two seasons, but Disney's perpetual presence on television brought Williams' dashing heroic figure into households for years after the initial run had ended. Williams was subsequently pegged by the producers of Bonanza as a potential replacement for Pernell Roberts in the series, and he was tried out in the role as the Mexican-born cousin of the Cartwrights across numerous episodes. In 1963, he also starred in the German-made international film Captain Sinbad, directed by American adventure film specialist Byron Haskin. In 1964, Williams was cast in the most familiar role of his career, as Professor John Robinson on the series Lost in Space (1965-1968); although he was a co-star with June Lockhart, he came to be partly overshadowed by Billy Mumy and Jonathan Harris in the story lines. Nevertheless, he provided a firm dramatic anchor for the series. As with most of the cast of Lost in Space, work was relatively hard to come by once it was canceled, but Williams evidently had no worries about money, having done well in his own investments and various business ventures. He also discovered on a visit to South America that he was very much a pop culture hero in most of Latin America, where Zorro had been an enormous success on television and was seemingly being rerun in perpetuity. He moved to Buenos Aires, enjoying a very comfortable retirement from the mid-'70s, and died of a heart attack there in 1989.

Trivia: The daughter of actors Gene and Kathleen Lockhart, June Lockhart made her own acting bow at age 8. In 1938, the 12-year-old June appeared in her first film, A Christmas Carol (1938), in which her parents portrayed Mr. and Mrs. Bob Cratchit. Few of her ingenue roles of the 1940s were memorable, though Lockhart did get to play the title character in The She-Wolf of London (1945) (never mind that she turned out not to be a she-wolf by fadeout time). In 1958, Lockhart took over from a recalcitrant Cloris Leachman in the role of rural wife and mother Ruth Martin on the long-running TV series Lassie. Though she professed to despise the role, Lockhart remained with the series until 1964, and over 20 years later satirically reprised the character on an episode of It's Garry Shandling's Show. She went on to play the young matriarch of the "space family Robinson" on the Irwin Allen TV endeavor Lost in Space (1965-68), and portrayed a lady doctor on the last two seasons of the bucolic sitcom Petticoat Junction. In deliberate contrast to her TV image, Lockhart enjoyed a bohemian, kick-up-your-heels offscreen existence. At one juncture, she was fired from her co-hosting chores at the Miss USA pageant when it was revealed that (gasp!) she was living with a man much younger than herself. June Lockhart is the mother of Anne Lockhart, a prolific TV actress in her own right.

Trivia: Supporting actor Mark Goddard first appeared onscreen in the '60s. He is now an agent.

Trivia: Instantly recognizable for his sophisticated and grim-visaged manner of speech and his sharp, expressive features, popular character actor Jonathan Harris' villainous role on the beloved series Lost in Space earned him both a noted spot in the annals of television history and a warm place in the hearts of TV viewers everywhere. Born Jonathan Charasuchin in November 1914, the son of impoverished Russian-Jewish immigrants worked as a pharmacy box boy in his early teens, later pursuing a pharmacology degree from Fordham University. Though successful in his early career, the young pharmacist couldn't resist the lure of the stage, and after changing his surname, Jonathan Harris began making frequent appearances on the local stock company stages. Though his talent was undeniable, Harris felt that his thick New York accent impeded his ability to pursue the roles he wanted. Taking to British film as a means to remedy this, Harris took in as many British movies as possible in order to re-create their speech patterns, an ability he used to striking effect on both stage and screen -- so effective, in fact, that it became his trademark, with many of his fans failing to realize that offscreen, Harris' accent was pure "New Yorkese." Eventually drawn to the bright lights of Broadway, Harris became a fixture in the office of the Henry Miller Theater. Introduced to Gilbert Miller by Miller's sympathetic secretary, Harris' Broadway career subsequently took off following a small role in The Heart of a City. After finding a steady career on the stages of New York and on live television, Harris packed his bags for Hollywood and made his feature debut in 1953's Botany Bay. Television roles in The Twilight Zone and Bewitched followed in short succession, and in 1965 Harris received the biggest break of his career when cast in Lost in Space. Crediting producer Irwin Allen with giving him free rein regarding character interpretation, Harris quickly became the biggest draw of Lost in Space due to his unique comic villainy. Despite his co-stars' rumored aggravation over his breakout performance, Harris' utter professionalism and genuinely friendly demeanor won over cast and crew as effectively as his villainous persona did the viewing public. Also appearing in such popular television series as Zorro, Sanford and Son, and Night Gallery, Harris would frequently lend his distinct voice to numerous cartoons (Darkwing Duck, Freakazoid!) in addition to the infrequent theatrical release (A Bug's Life [1998] and Toy Story 2 [1999]). Married to high school sweetheart Gertrude in 1938, the couple's marriage endured to Harris' death in late 2002 resulting from a blood clot in his heart. He was 87.

Trivia: Until his death at 74 from a heart attack, Liam Sullivan was a very busy actor on television and in theater, and in the former medium, he made a career specializing almost exclusively in erudite villains (or, at least, luckless ambitious men). A native of Jacksonville, IL, Sullivan was descended from W.E. Sullivan, the founder of the renowned Eli Bridge Company; the latter conpany became famous for popularizing the Ferris wheel, and a century later remains a mainstay of the amusement ride industry. Liam Sullivan, however, decided to go into a different end of the entertainment field, acting in local theater while attending Illinois College and later studying drama at Harvard University. His patrician good looks and dashing persona, coupled with a good range, enabled him to take a large variety of parts: playboys, rogues, heroes. In his younger days, he'd have made a perfect Rupert of Hentzau in The Prisoner of Zenda. Sullivan's Broadway credits included The Constant Wife with Katherine Cornell, and Love's Labours Lost, both in the early 1950s; and, in the 1960s, Mike Nichols' production of The Little Foxes. Though he also did theatrical work in Los Angeles, Sullivan didn't make too many movie appearances: Disney's That Darn Cat (as Agent Sullivan, no less) and Bert I. Gordon's The Magic Sword were probably his two most widely seen films.His television career, however, which began at the start of the 1950s on live shows such as Lights Out, afforded Sullivan a busy career across four decades. He was on the soap opera General Hospital, but was also a familiar figure in prime-time series, including westerns such as Have Gun Will Travel, The Virginian, Bonanza, and The Monroes (a series in which he had a regular role as a villain); but also in science fiction (Lost In Space), crime dramas (The Fugitive, Dragnet), and comedies (Gomer Pyle, USMC). On Voyage to the Bottom of the Sea, in the episode "Leviathan," he plays an ambitious scientist whose undersea discovery results in his undergoing a hideous transformation and a horrible fate; in the Star Trek episode "Plato's Stepchildren," he made a memorable impression as a humanoid alien (working opposite Barbara Babcock in a sadistic role), glib-tongued, erudite, and perfectly at ease manipulating and attempting to kill people with his telekinetic power. He also starred in one of the more widely remembered Twilight Zone shows, "The Silence," playing a man who accepts a bet from a social rival that he can go for a year without uttering a single word. Sullivan's best performance, however, was in the 1968 Dragnet episode "The Big Prophet," as William Bentley, an academic-turned-guru (obviously inspired by Timothy Leary) whose public espousal of drug use results in a confrontation with the police. Sullivan was at his most waspish (in a manner reminiscent of Clifton Webb's Waldo Lydecker from Laura) in the three-man drama, made up entirely of his verbal sparring with series stars Jack Webb and Harry Morgan. He was still working regularly in the 1990s, right up to the time of his death, a month before his 75th birthday.

Trivia: Kevin Hagen is a veteran character actor long associated with intense dramatic roles. He has portrayed everything from hitmen and rapists to prosecutors and police officers, but is perhaps best known to television audiences for his portrayal of the avuncular Dr. Baker on the long-running series Little House on the Prairie. Hagen was born and raised in and around Chicago, but moved to Portland, OR, during his teens. Following a two-year hitch in the United States Navy, he attended college on the G.I. Bill, majoring in international relations, and later worked for the U.S. State Department in Germany. Bored with that job, he considered a career in law but dropped out after one year. While trying to figure out what he wanted to do for a career, he auditioned for a production of the play Blind Alley and won a small role, despite the fact that he had never acted before. Within a year, Hagen had moved up to playing the lead in a production of James Thurber's play The Male Animal, and spent the next few years scraping out a living in small theatrical productions around Los Angeles in between studying with Agnes Moorehead, among other notables. His breakthrough came with his portrayal of stern patriarch Ephraim Cabot in a production of Eugene O'Neill's Desire Under the Elms -- that led to his getting an agent and, in turn, led to his television debut in an episode of Dragnet. He appeared in various dramatic anthology shows and played important guest-star parts on programs such as Gunsmoke, Rawhide, Cheyenne, M-Squad, and The Untouchables -- in one episode of the latter, "Stranglehold," Hagen brought a startling degree of humanity and depth to the part of a professional killer. Hagen made his feature-film debut in 1958 in the Disney-produced The Light in the Forest, and that same year, he got his first regular role in a series when he was cast in the part of John Colton, the city administrator of post-Civil War New Orleans, in Yancy Derringer. The show only ran for one season, but Hagen had more work than ever following the conclusion of filming, on such series as Bonanza, Perry Mason, The Man From U.N.C.L.E., The Felony Squad, and Mission: Impossible. He also did some film work, most notably in Andrew V. McLaglen's Civil War drama Shenandoah (1965), in which Hagen played the scavenging deserter who murders James Stewart's son (Patrick Wayne) and rapes and murders Stewart's daughter-in-law (Katharine Ross). During this period, he also began a string of appearances in television series produced by Irwin Allen, guest starring in episodes of Lost in Space, Voyage to the Bottom of the Sea, and Time Tunnel. Those roles led to Hagen's being cast as Inspector Kobick, the security officer pursuing the diminutive earthlings, in Allen's Land of the Giants. He brought a great deal of humanity and complexity to his portrayal of the character in the course of the series' two-season run. During the 1970s, Hagen made frequent guest appearances on series such as M*A*S*H, Quincy, and Knot's Landing. In 1974, Hagen was cast in the role for which he has become best known, as Dr. Baker in Little House on the Prairie. He portrayed the part for ten seasons and developed a serious fandom among the series' legions of viewers. Hagen left Hollywood for Oregon in the early '80s, and has continued his work in regional theater productions of such plays as West Side Story, Follies, and Oklahoma! He also performs his own one-man show, a mixture of songs, monologues, and prairie wit and wisdom drawn from his Little House persona.