James T. Callahan
- Born
2007 Albert Martino (as James Callahan)
- Wild Hearts
2006 Arliss
- The Standard
2006 Principal Watson
- Medium
2005 Jury Foreman
- Extreme Honor
2001 Randolph Brascoe
- Every Dog Has Its Day
1998 Father Quinn
- The Practice
1997 Trevor Wayne
- 7th Heaven
1996 Father Mulligan
- Midnight Man
1995 Chief Massey
- A Norman Rockwell Christmas Story
1995 Samuel Cavanaugh
- Hope and Gloria
1995 Bill
- Caroline in the City
1995 Mayor Paisley
- Cybill
1995 Father Lindeman
- Return to Two Moon Junction
1994 Mr. Bowman
- A Part of the Family
1994 Kirby
- ER
1994 Oliver
- Return of the Living Dead III
1993 Col. Peck
- Good Advice
1993 Man in Bookstore
- Hero
1992 Police Chief
- Harry and the Hendersons
1991 Andrew Henderson
- Doogie Howser, M.D.
1989 Phil
- The New Lassie
1989
- Prison for Children
1987 Judge Collins
- The Christmas Gift
1986 Robert Truesdale
- A Bunny's Tale
1985 Phil
- Heart of a Champion: The Ray Mancini Story
1985 Father O'Neill
- Copacabana
1985 Dennis Reilly
- Growing Pains
1985 Uncle Bob
- The Golden Girls
1985 Malcolm Gordon
- The New Alfred Hitchcock Presents
1985 Everett
- Hollywood Beat
1985
- Lime Street
1985
- Amazing Stories
1985 Erhardt
- The Burning Bed
1984 Berlin Hughes
- Charles in Charge
1984 Walter Powell
- Rita Hayworth: The Love Goddess
1983 Test Director
- Little House: Look Back to Yesterday
1983 Doctor Houser
- The A-Team
1983 Dr. Fallone
- Automan
1983
- Remington Steele
1982 Emmett DeVore
- Fame
1982
- Knight Rider
1982 Sheriff Bruckner
- Newhart
1982
- The Haunting of Harrington House
1981 Walter Ames
- Inchon
1981 Gen. Almond
- Simon & Simon
1981
- Cloud Dancer
1980 Walt Lawson
- Bosom Buddies
1980
- Can You Hear the Laughter? The Freddie Prinze Story
1979 The Producer
- The Ropers
1979
- Studs Lonigan
1979 Moxey
- The Runaways
1978 Sgt. Hal Grady
- Outlaw Blues
1977 Garland Dupree
- Lou Grant
1977
- Alice
1976
- CPO Sharkey
1976
- Quincy, M.E.
1976
- The Practice
1976
- McNaughton's Daughter
1976 Lew Farragut
- Baa Baa Black Sheep
1976 Col. Maurice Parker
- Violence in Blue
1975
- The Missiles of October
1974 David Powers, Special Assistant to the President
- The Rockford Files
1974 Leslie Hartman
- The Mystery in Dracula's Castle
1973 Sheriff
- Police Story
1973
- Lady Sings the Blues
1972 Reg Hanley
- She Waits
1972 David Brody
- M*A*S*H
1972 Tommy Gillis
- Travis Logan, D.A.
1971 Jerry
- Cannon
1971
- Tropic of Cancer
1970 Fillmore
- Love, American Style
1969 Jim
- Adam-12
1968 Miles Wellman
- Mosby's Marauders
1967 Sam Chapman
- The Invaders
1967 Ed Gidney
- The Time Tunnel
1966 Ensign Beard
- The F.B.I.
1965 Richard Lenk
- Run for Your Life
1965 Major Ted Fowler
- Convoy
1965 Dick O'Connell
- Profiles in Courage
1964 Barnes
- Wendy and Me
1964
- 12 O'Clock High
1964 Maj. Zach Temple
- The Great Adventure
1963 Josh
- The Fugitive
1963 Russ Haynes
- The Lieutenant
1963
- Breaking Point
1963
- Experiment in Terror
1962 FBI Agent (uncredited)
- Combat!
1962 Reicher
- Stoney Burke
1962
- Dr. Kildare
1961 Dr. Yates Atkinson
- Ben Casey
1961 Larry McKay
- The Walking Target
1960 Al Kramer
- Man on a String
1960 C.B.I. Agent (uncredited)
- Route 66
1960
- The Case of the Dangerous Robin
1960 Ted Baylor
- The Twilight Zone
1959 Doug Kirk
- The Detectives
1959
- Not for Hire
1959
- Perry Mason
1957 Police Officer Wilson
- General Electric Theater
1953 Floyd Wright
- Death Valley Days
1952 Private Riggs (as James Callahan)
