He has guest-starred or appeared in nearly 400 television productions, including "The Invaders", Barnaby Jones in the episode titled “Theater of Fear” alongside Anne Francis (09/26/1975); "Voyage To The Bottom Of The Sea", ', (as 'Captain Merrick' in the famous episode, 'Bread and Circuses'.) "Combat", ', and "Hawaii Five-O", as well as feature films such as "Attack" (1956), "Trouble Man" (1972), "Scorpio" (1973), "Papillon" (1973), "The Six Million Dollar Man" (1974), and "Deathsport" (1978). His performance in "Papillon" prompted the producers of "Demolition Man" to name that film's prison warden "William Smithers".