John P. Ryan
- Compleanno:
- 07/30/1936
- Luogo di nascita:
- New York City, New York, USA:
 | The Pixar Story (2007) Dr. Schneider (archive footage) |
 | Bound (1996) Mickey Malnato |
 | Bad Blood (1994) John Blackstone |
 | Les Patriotes (1994) Arthur |
 | Batman: Mask of the Phantasm (1993) Buzz Bronski (voice) |
 | Young Goodman Brown (1993) The Devil |
 | Hoffa (1992) Red Bennett |
 | White Sands (1992) Arms Dealer (Uncredited) |
 | Star Time (1992) Sam Bones |
 | Blood River (1991) Henry Logan |
 | Eternity (1990) Thomas Vandervere / Prosecutor |
 | Delta Force 2: The Colombian Connection (1990) Gen. Taylor |
 | Class of 1999 (1990) Mr. Hardin |
 | Best of the Best (1989) Jennings |
 | Paramedics (1988) Captain Prescott |
 | City of Shadows (1987) Sergeant Fireman |
 | Rent-a-Cop (1987) Wieser |
 | Fatal Beauty (1987) Lt. Kellerman |
 | Three O'Clock High (1987) Mr. O'Rourke |
 | Death Wish 4: The Crackdown (1987) Nathan White |
 | Rip Van Winkle (1987) Hendrick Hudson |
 | Houston: The Legend of Texas (1986) David Burnett |
 | Avenging Force (1986) Prof. Elliott Glastenbury |
 | Runaway Train (1985) Ranken |
 | The Cotton Club (1984) Joe Flynn |
 | The Right Stuff (1983) Head of Program |
 | Shooting Stars (1983) McGee |
 | Breathless (1983) Lt. Parmental |
 | The Escape Artist (1982) Vernon |
 | The Postman Always Rings Twice (1981) Kennedy |
 | The Last Flight of Noah's Ark (1980) Coslough |
 | It Lives Again (1978) Frank Davis |
 | Kill Me If You Can (1977) Johnson |
 | A Killing Affair (1977) Flagler |
 | Futureworld (1976) Dr. Mort Schneider |
 | The Missouri Breaks (1976) Si |
 | Death Scream (1975) Detective Dave Lambert |
 | Target Risk (1975) Ralph Sloan |
 | It's Alive (1974) Frank Davis |
 | Cops and Robbers (1973) Patsy O'Neill |
 | Dillinger (1973) Charles Mackley |
 | Shamus (1973) Col. Craig C. Hardcore |
 | The King of Marvin Gardens (1972) Surtees |
 | The Legend of Nigger Charley (1972) Houston |
 | Been Down So Long It Looks Like Up to Me (1971) Oeuf |
 | Five Easy Pieces (1970) Spicer |
 | A Lovely Way to Die (1968) Harry Samson (uncredited) |
 | A Hatful of Rain (1968) Chuck |