- "The Godfather" (1972) as Vito Corleone
- "The Gangs of New York" (2002) as Boss Tweed
- "The Godfather Part II" (1974) as Vito Corleone
- "The Parallax View" (1974) as Bill Meecham
- "Face Off" (1997) as Dr. Malcolm Walsh
- "The Godfather: Part III" (1990) as Vito Corleone
- "The Sicilian" (1987) as Don Masino Croce
- "Love and Death" (1975) as Boris
- "The Front" (1976) as Phil Sussman
- "Serpico" (1973) as Chief Sidney Green
- "The Waltons" (1974) as Grandpa Zebulon Tyler
- "Columbo" (1975-1976) as Justin Price and Paul Hanlon
- "McCloud" (1976) as Captain Sam Croft
- "Baretta" (1975-1978) as Det. Tony Baretta
- "Hawaii Five-O" (1976) as John Russo
- "The Rockford Files" (1978) as Nick Mancuso
- "Fantasy Island" (1978) as Mr. Roarke
- "The Muppet Show" (1978) as Himself