Herec - film

• The Aviator (2004) .... senátor Ralph Owen Brewster
• Club Land (2001) (TV) .... Willie Walters
• What Women Want (2000) .... Dan Wanamaker
• Keepers of the Frame (1999) .... sám sebe
• Object of My Affection, The (1998) .... Sidney Miller
• Mad City (1997) .... Kevin Hollander
• Murder at 1600 (1997) .... Alvin Jordan, National Security Advisor
• Everyone Says I Love You (1996) .... Bob Dandridge
• Flirting with Disaster (1996) .... Richard Schlichting
• Canadian Bacon (1995) .... prezident USA
• Manhattan Murder Mystery (1993) .... Ted
• Whispers in the Dark (1992) .... Leo Green
• Betsy's Wedding (1990) .... Eddie Hopper
• Crimes and Misdemeanors (1989) .... Lester
• New Life, A (1988) .... Steve
• Sweet Liberty (1986) .... Michael Burgess
• Four Seasons, The (1981) .... Jack Burroughs
• Seduction of Joe Tynan, The (1979) .... Joe Tynan
• Same Time, Next Year (1978) .... George
• California Suite (1978) .... Bill Warren
• To Kill a Clown (1972) .... Major Evelyn Ritchie
• Mephisto Waltz, The (1971) .... Myles Clarkson
• Moonshine War, The (1970) .... John W. (Son) Martin
• Jenny (1970) .... Delano
• Extraordinary Seaman, The (1969) .... Morton Krim
• Paper Lion (1968) .... George Plimpton
• Gone Are the Days! (1963) .... Charlie Cotchipee

Herec - TV

• "The West Wing" .... senátor Arnold Vinick (2004-)
• M*A*S*H: 30th Anniversary Reunion (2002) .... sám sebe (Hawkeye Pierce)
• TV Guide 50 Best Shows of All Time: A 50th Anniversary Celebration (2002) .... sám sebe
• Killing Yard, The (2001) .... Ernie Goodman
• Club Land (2001) .... Willie Walters
• "Influences" (2000) (seriál) .... sám sebe
• "ER" (1994) seriál .... doktor Gabriel "Gabe" Lawrence (1999)
• CBS: The First 50 Years (1998) .... sám sebe
• Jake's Women (1996) .... Jake
• Kennedy Center Honors, The (1994) .... sám sebe
• White Mile (1994) .... Dan Cutler
• One on One: Classic Television Interviews (1993) (archive footage) .... sám sebe
• And the Band Played On (1993) .... Dr. Robert Gallo
• Memories of M*A*S*H (1991) .... sám sebe (Hawkeye Pierce)
• "Scientific American Frontiers" (1990) seriál .... Host
• M*A*S*H: Goodbye, Farewell and Amen (1983) .... Capt. Benjamin Franklin 'Hawkeye' Pierce
• Kennedy Center Honors, The (1979) .... Presenter: Henry Fonda
• 30th Annual Primetime Emmy Awards, The (1978) .... sám sebe/Host
• "CBS: On the Air" (1978) (mini) seriál .... Co-host - part III
• Kill Me If You Can (1977) .... Caryl W. Chessman
• 28th Annual Primetime Emmy Awards, The (1976) .... sám sebe
• Free to Be... You & Me (1974) (hlas) .... Various characters
• Isn't It Shocking? (1973) .... Sheriff Dan Barnes
• Playmates (1972) .... Marshall Barnett
• "M*A*S*H" (1972) seriál .... Capt. Benjamin Franklin 'Hawkeye' Pierce, MD, Chief Surgeon
• Glass House, The (1972) .... Jonathan Paige
• "What's My Line?" (1968) seriál (uncredited) .... sám sebe/guest panelist
• 18th Annual Tony Awards, The (1965) .... sám sebe/Presenter
• "That Was the Week That Was" (1964) seriál .... sám sebe
• "Secret File, U.S.A." (1955) seriál

Host v TV pořadech a seriálech

• "Inside the Actors Studio" (1994) 6 August 2000
• "Four Seasons, The" (1984) ... Jack Burroughs epizoda: "Pilot"
• "Carol Burnett Show, The" (1967) ... Multiple Characters 1977
• "To Tell the Truth" (1969) ... Guest Panelist
• "Coronet Blue" (1967) ... Clay epizoda: "Six Months to Mars"
• "Trials of O'Brien, The" (1965) epizoda: "Picture Me a Murder"
• "Route 66" (1960) epizoda: "Soda Pop and Paper Flags"
• "Nurses, The" (1962) epizoda: "Night Sounds"
• "Nurses, The" (1962) epizoda: "Many A Sullivan"
• "East Side/West Side" (1963) playing "Freddie Wilcox"

Scénáře

• M*A*S*H: 30th Anniversary Reunion (2002)
• Betsy's Wedding (1990)
• New Life, A (1988)
• Sweet Liberty (1986)
• "Four Seasons, The" (1984)
• M*A*S*H: Goodbye, Farewell and Amen (1983)
• Four Seasons, The (1981)
• Seduction of Joe Tynan, The (1979)
• "We'll Get By" (1975)
• "M*A*S*H" (1972)

Režie

• M*A*S*H: 30th Anniversary Reunion (2002)
• Betsy's Wedding (1990)
• New Life, A (1988)
• Sweet Liberty (1986)
• M*A*S*H: Goodbye, Farewell and Amen (1983)
• Four Seasons, The (1981)
• "M*A*S*H" (1972)