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: One of the best child actors of the 1950s and 1960s, freckled-faced Billy Mumy performed with a directness and sincerity that put many an adult performer to shame. Before he was even ten years old, Mumy had played two of the most unforgettable juveniles in TV history: malevolently telekinetic Anthony Fremont on the 1961 Twilight Zone episode "It's a Good Life," and the pistol-toting protagonist of "Bang! You're Dead," an incredibly suspenseful 1962 installment of Alfred Hitchcock Presents, directed by Hitchcock himself. In films from 1963, Mumy's finest cinematic hour-and-a-half was as Erasmus Leaf, an 8-year-old math genius with an all-consuming crush on Brigitte Bardot, in 1965's Dear Brigette. From 1965 to 1968, Mumy appeared as Will Robinson on the popular TV sci-fi fantasy series Lost in Space. As Mumy matured, he found roles harder to come by, though he was given generous screen time in the 1971 Stanley Kramer production Bless the Beasts and Children and was a regular on the 1975 TV weekly Sunshine. He kept busy in the 1980s on the sci-fi convention lecture circuit and as a scriptwriter; he also played cameo roles in remakes of "It's a Good Life" (the middle section of the 1983 Twilight Zone feature film) and "Bang! You're Dead" (one of the components of the 1985 TV revival of Alfred Hitchcock Presents). The many fans of Bill Mumy's previous work in the realm of "fantastic television" were delighted in 1995 to find him playing the recurring role of Lennier on the syndicated TVer Babylon 5.

Trivia: Though she was best known as a young TV star, Angela Cartwright also appeared in perennial movie musical favorite The Sound of Music (1965). Born in England, Cartwright's family moved to Los Angeles when she was three. Cartwright soon made her film debut, at the ripe old age of three and a half, in Somebody Up There Likes Me (1956). Cast in 1957 as stepdaughter Linda on Danny Thomas' TV hit Make Room for Daddy, retitled The Danny Thomas Show, Cartwright stayed with the series until it ended in 1964. It was Cartwright's two mid-'60s credits, though, that captured the most devoted fans. As The Sound of Music's pretty Brigitta Von Trapp, Cartwright became one of the seven children taught to sing and love life by buoyant nun/stepmother Julie Andrews. With its Rodgers & Hammerstein songs and unbridled sentiment, The Sound of Music broke box office records, becoming a beloved classic. Cartwright then joined the cast of Irwin Allen's low-tech TV series Lost in Space as young teen daughter Penny Robinson. Though the show only ran from 1965 to 1968, Lost in Space attracted a durable cult following; Cartwright had a cameo in the 1998 film version. After Lost in Space ended, Cartwright made sporadic appearances in films and TV in the subsequent decades, including Irwin Allen's disaster flick sequel Beyond the Poseidon Adventure (1979). Married since 1976, Cartwright has two children and made a career outside of acting as a photographer, writer, and boutique owner. Her older sister is actress Veronica Cartwright.