(1960) Pay or Die!

as Lupo Miano (as John Duke)

(1961) The Crimebusters

as Hood

(1973) The Don Is Dead

as Don Aggimio Bernardo

(1971) Maybe I'll Come Home in the Spring

as Doctor (uncredited)

(1972) The Man

as Haley

(1959) Never Steal Anything Small

as Ward (as John Duke)

(1962) Follow That Dream

as Al (as John Duke)

(1972) Man On A String

as Carlo Buglione (as John Duke Russo)

(1969) The Greatest Mother of 'em All

as Gene Frazer

(1968) The Split

as Maccione (uncredited)

(1975) Hustle

as Man in Phone Booth

(1963) The Fugitive

as Sergeant Endicot

(1963) The Fugitive

as Bus Driver

(1963) The Outer Limits

as Dr. Terrell

(1968) Hawaii Five-O

as Abilleno

(1966) Star Trek

as Lt. Commander Giotto

(1966) Star Trek

as Commodore Wesley

(1968) Hawaii Five-O

as Willy Vance

(1968) Hawaii Five-O

as Albert Jovanko

(1968) Hawaii Five-O

as Eddie Rizzo

(1960) The Case of the Dangerous Robin

as Teddy Thomas

(1966) Mission: Impossible

as Tiso Kastner

(1967) The Invaders

as Lt. Alvarado