Biografía no disponible
| Año | Título | Personaje | Valoración |
|---|---|---|---|
| 2008 | Garden Party | Davey Diamond | ★★★☆☆ |
| 2007 | Mad Men | Andrew Campbell | ★★★★☆ |
| 2006 | No mires atrás | Dr. James Leroy | ★★★★☆ |
| 2006 | Cinco hermanos | Governor Michael Bryant | ★★★★☆ |
| 2006 | Shark | ★★★☆☆ | |
| 2005 | Señora presidenta | Secretary Francis | ★★★★☆ |
| 2003 | Navy: Investigación criminal | Dan Karzin | ★★★★☆ |
| 2002 | CSI: Miami | Deke Conroy | ★★★★☆ |
| 2002 | Sin rastro | Herman Jarvis | ★★★★☆ |
| 2000 | Jack Frost 2 | Sam Tiler | ★★☆☆☆ |
| 2000 | Mystery Kids | Wade Johnson | ★★★☆☆ |
| 1999 | La juez Amy | Stan Wharton | ★★★★☆ |
| 1998 | Felicity | Dominic Webb | ★★★☆☆ |
| 1997 | Jack Frost | Sam Tiler | ★★★☆☆ |
| 1996 | Con su propia justicia | Grubb | ★★☆☆☆ |
| 1996 | 7 en el paraiso | Mr. Miller | ★★★☆☆ |
| 1996 | The Pretender | Lt. Cmdr. Chris Nashton | ★★★★☆ |
| 1996 | Secta de sangre | ★★★★☆ | |
| 1996 | El centinela | Gerald Spalding | ★★★★☆ |
| 1995 | J.A.G.: Alerta roja | Judge Haden | ★★★★☆ |
| 1994 | Cinco en familia | ★★★☆☆ | |
| 1994 | Urgencias | Mr. Strickland | ★★★★☆ |
| 1994 | Chicago Hope | ★★★★☆ | |
| 1993 | Mensaje Desde Vietnam | Ralph Johnson | ★★★☆☆ |
| 1993 | Walker Texas Ranger | Tony Seville | ★★★☆☆ |
| 1993 | Diagnóstico: Asesinato | Peter Murray | ★★★★☆ |
| 1993 | Expediente X | Agent Jack Willis | ★★★★☆ |
| 1993 | Alex Haley's Queen | Union Office | ★★★★☆ |
| 1991 | Medias de seda | ★★★☆☆ | |
| 1990 | Beverly Hills, 90210 | ★★★★☆ | |
| 1989 | Un médico precoz | ★★★☆☆ | |
| 1989 | A través del tiempo | Alan Ripley | ★★★★☆ |
| 1988 | David | Terry | ★★★★☆ |
| 1988 | China Beach | ★★★★☆ | |
| 1987 | Deadly Deception | Lt. McMasters | ★★★☆☆ |
| 1987 | Jake y el gordo | ★★★☆☆ | |
| 1986 | News at Eleven | Gene Silas | ★★★★☆ |
| 1986 | Invasores de Marte | Captain Curtis | ★★★☆☆ |
| 1986 | Matlock | ★★★★☆ | |
| 1986 | Throb | ★★★☆☆ | |
| 1985 | Vivir y morir en Los Ángeles | Max Waxman | ★★★★☆ |
| 1985 | Spiker | Newt | ★☆☆☆☆ |
| 1985 | Más allá de los límites de la realidad | ★★★★☆ | |
| 1985 | The Atlanta Child Murders | Larry Peterson | ★★★☆☆ |
| 1984 | Single Bars, Single Women | Max | ☆☆☆☆☆ |
| 1984 | Se ha escrito un crimen | Donald Granger | ★★★★☆ |
| 1984 | Hunter | Jack Prewitt | ★★★★☆ |
| 1984 | Crazy like a Fox | Endicott | ★★★★☆ |
| 1984 | Se ha escrito un crimen | Jim Harlan | ★★★★☆ |
| 1984 | Se ha escrito un crimen | Maurice Delagre | ★★★★☆ |
| 1983 | Special Bulletin | Steven Levitt | ★★★☆☆ |
| 1983 | Brainwash | Jack Nilsson | ★★★☆☆ |
| 1983 | Who Will Love My Children? | Kenneth Handy | ★★★☆☆ |
| 1982 | Games Mother Never Taught You | Steve Clark | ☆☆☆☆☆ |
| 1982 | St. Elsewhere | ★★★☆☆ | |
| 1982 | Cagney & Lacey | ★★★☆☆ | |
| 1981 | Muertos y enterrados | George Le Moyne / Freddie | ★★★☆☆ |
| 1980 | Seizure: The Story of Kathy Morris | Larry | ★★★☆☆ |
| 1980 | City in Fear | Kenny Reiger | ★★★☆☆ |
| 1980 | Ladies Man | ★★★☆☆ | |
| 1980 | A Rumor of War | Van Cott | ★★★☆☆ |
| 1979 | El asesino tras la mascara | Nicky | ★★☆☆☆ |
| 1979 | Y con el bebé somos seis | Jeff Winston | ☆☆☆☆☆ |
| 1979 | Knots Landing | Martin | ★★★☆☆ |
| 1978 | And I Alone Survived | Craig Elder | ★★★☆☆ |
| 1977 | The Lincoln Conspiracy | Michael O'Laughlin | ★★★☆☆ |
| 1974 | Man on a Swing | Richie Tom Keating | ★★★☆☆ |
| 1974 | Harry O | ★★☆☆☆ | |
| 1973 | The Connection | Richard Wilcox | ☆☆☆☆☆ |
| 1972 | M*A*S*H | Abbott | ★★★★☆ |
| 1964 | Another World | ★★★☆☆ |
Películas destacadas de Christopher Allport
Estas son las películas más destacadas en las que ha trabajdo:
Series
Las series más importantes en las que ha participado son las siguientes:
