Served in the U.S. Marine Corps at the end of World War II
Credited as the voice of Leslie, the chauffeur, in the film "Harvey"
Made stage debut in the national company of "Mister Roberts"
Made feature film debut in "Untamed Frontier"
Had a small role in the western, "Springfield Rifle," starring Gary Cooper
Discovered by Walt Disney while acting in the B movie, "Them!"
Played the title role in a series of Disney programs, "The Adventures of Davy Crockett" (ABC)
Starred as John 'Doc' Grayson in film, "Westward Ho the Wagons!"
Reprised film role of Doc Grayson' in the TV version, aired as part of "Walt Disney" on ABC
Played the father in the Disney classic, "Old Yeller"
Starred in the TV version of "Mr. Smith Goes to Washington" (ABC)
Played the title role in the NBC series, "Daniel Boone"
Made TV-movie debut in "Climb an Angry Mountain"
Final film or TV appearance was the unaired pilot of "The Fess Parker Show"