Appeared as guest actor on such series as "Robert Montgomery Presents Your Lucky Strike Theater", "Faith Baldwin's Theater of Romance" and "Chrysler Medallion Theater"
Appeared in fourth sequel "Battle for the Planet of the Apes"
Began career as a child model
Executive produced feature "Overboard"; also played the role of the butler Andrew
Film debut, "Convict 99"
Final film role, providing a character voice for the animated "A Bug's Life"
Formed Silver Lion Inc., a production company
Had featured role in John Ford's Oscar-winning "How Green Was My Valley"
Provided the voice of Snowball, the hamster nemesis of Brain, on the animated "Steven Spielberg Presents Pinky and the Brain"
Published first book of photographs, "Double Exposure"
Settled in Hollywood; put under contract at 20th Century-Fox
Starred in the Broadway production of "Compulsion", based on the Leopold and Loeb case
Co-starred as the scientist Dr. Willaway on the sci-fi series "Fantastic Journey" (NBC)
Off-Broadway debut, "The Homeward Look"
Played new role of Caesar in second sequel "Conquest of the Planet of the Apes"
Stage acting debut, "Young Woodley" in Westport, CT
Was French magistrate and bar owner Bon Chance Louis in the ABC adventure series "Tales of the Gold Monkey"
Appeared in the inaugural season of the American Shakespeare Festival in Stratford, CT
Appeared on the camp TV adventure series, "Batman" as the criminal 'The Bookworm'
Associate produced first film, "Kidnapped"; also acted
Co-starred in the overblown "Cleopatra", starring Elizabeth Taylor and Richard Burton
Directed first feature, "The Devil's Widow/Tamlin"
Had one of his best roles as the TV horror host called upon to battle vampires in the superior horror film "Fright Night"
Loaned to MGM for "Lassie Come Home"; first screen work with Elizabeth Taylor
Reprised role in the sequel "Escape From the Planet of the Apes"
TV miniseries debut in supporting role in "The Rhinemann Exchange" (NBC)
Was executive secretary to Suzanne Pleshette in the CBS drama "Bridges to Cross"
Appeared as an interviewee in several episodes of the A&E series "Biography"
Entered into an exclusive production agreement with Foxboro Entertainment to serve as producer and production consultant to the company
Had featured role in the Broadway play "The Fighting Cock"; won Tony Award
Made stage musical debut as Mordred in "Camelot", starring Richard Burton and Julie Andrews
Narrated the Showtime series "Sex and the Silver Scene"
Played himself in "Going Hollywood: The War Years"
Starred as Cornelius in "Planet of the Apes"
Toured in vaudeville in the late 1940s
TV series debut as regular, the short-lived CBS version of "Planet of the Apes"
Voiced The Mad Hatter on the animated "The Adventures of Batman and Robin"
With mother and sister, moved to the USA to escape bombing of London during WWII
Worked as a portrait photographer for LOOK, LIFE and VOGUE magazines, among others