1982 - 1986 - Days of Our Lives (Eugene Bradford)
1989 - 1989 - Days of Our Lives (Eugene Bradford)
1988 - 1988 - Trial and Error (Bob Adams)
1995 - 1995 - Legend (Janos Bartok)
Mini Series and Specials:
1976 - Captains and the Kings (TV Mini Series) (Timothy Armagh)
1977 - Testimony of Two Men (TV Mini Series) (Jerome Eaton)
1977 - Aspen (TV Mini Series) *Ray Chilton)
1978 - Black Beauty (TV Mini Series) (Henry)
1980 - Scruples (TV Mini Series) (Pierre Goodman)
1983 - The Thorn Birds (TV Mini Series) (Alastair MacQueen)
1991 - Star Trek 25th Anniversary Special (Himself)
1995 - Journey's End - The Saga of Star Trek: The Next Generation (Himslf)
1996 - Star Trek: Borg (Q/Dr. Quint)
1996 - Star Trek: 30 Years and Beyond (Himself)
1997 - Trekkies (Himself)
1998 - Star Trek: The Game Show (Q)
1998 - Star Trek World Tour (Q)
1999 - Ultimate Trek: Star Trek's Greatest Moments
Tv Movies:
1977 - SST: Death Flight (Bob Connors)
1977 - The Man with the Power (Clark)
1978 - The Bastard (1978) (Lt. Stark)
1978 - Little Women (1978) (Frank Vaughn)
1980 - Nightside (1980) (Willy Pitts)
1981 - The Miracle of Kathy Miller (Dr. Christiansen)
1986 - Houston: The Legend of Texas)
1987 - On Fire (Bobby)
1989 - Get Smart, Again! (Maj. Waterhouse)
1989 - Christine Cromwell: Things That Go Bump in the Night)
1990 - Angel of Death (Jeffrey)
1994 - Without Warning (Barry Steinbrenner)
1996 - Raven Hawk (Stansfield)
1997 - Final Descent (Capt. George W. Bouchard0
1998 - You Lucky Dog
1999 - Final Run (George Bouchard)
Voice Acting and Narration:
1996 - The Real Adventures of Jonny Quest (TV Series) (voice) (Dr. Benton C. Quest (II) (alternating) (1996-1997)
1997 - Outlaws (voice) (Matthew 'Dr. Death' Jackson)
1998 - Saving Private Ryan (voice) (Letter Reader)
1998 - Gen 13 (voice) (Colonel John 'Jack' Lynch)
1999 - Planescape: Torment (voice) (Trias)
Movies:
1975 - Legacy
1979 - The Onion Field (LAPD Lieutnant #2)
1980 - Loving Couples (Alan)
1988 - Blood Red
1990 - Bad Influence (Howard)
1990 - Taking Care of Business (Ted Bradford, Jr. Vice Pres. High
Quality Foods)
1991 - The Fisher King (TV Executive)
1991 - Missing Pieces (Paul/Walter Thackary)
1992 - The Hand That Rocks the Cradle (Victor Mott, OBGYN)
1993 - Arcade (Difford)
1993 - Fearless (Jeff Gordon)
1994 - Schemes (Arthur Martin)
1994 - Deep Red (Thomas Newmeyer)
1995 - Evolver (Russell Bennett)
1996 - Multiplicity (Ted)
1997 - Interstate '76 (Antonio Malochio)
1999 - Gabriel Knight 3: Blood of the Sacred, Blood of the Damned (Montreaux)
1999 - The First Men on the Moon (Jeremiah Bedford)
2000 - Roswell: The Unheard Broadcast (Various)
2000 - Woman on Top (Alex Reeves)
2000 - Quality Time (Nathan Eastman)
2001 - Catch, The (Dr. Fisher)
2001 - Good Advice (as John DeLancie) (Ted)
2001 - Nicolas
Producer: