LeGault's first three feature films were Elvis Presley movies, "Girls! Girls! Girls!" (1962) in which he was a stunt double for Elvis Presley, "Kissin' Cousins" (1964), and "Viva Las Vegas" (1964). He also appeared in Presley's 1968 NBC television special "Elvis" (also known as "Elvis' 68 Comeback Special"), where he sat at the side of the stage playing a tambourine. He appeared in "Roustabout", another Presley film, as a carnival barker. In 1969, he appeared as Iago in the UK stage version of "Jack Good's Catch My Soul: Rock Othello", and played Iago again in the 1974 Metromedia film version of "Catch My Soul".