Film

No.	Year	Title	Role	Vote Average
1	1966	An Enemy of the People		0
2	1968	Pretty Poison	Harry Jackson	68
3	1970	Cover Me Babe	Jerry	46
4	1970	Rabbit, Run	Barney	35
5	1973	The Seven-Ups	Ansel - Seven-Up	63
6	1974	The Disappearance of Flight 412	White	49
7	1976	Judge Horton and the Scottsboro Boys	Dist. Atty. Tom Knight	60
8	1976	Network	Merrill Grant	78
9	1977	The Lincoln Conspiracy	John Surratt	56
10	1978	F.I.S.T.	Bernie Marr	65
11	1978	Devil Dog: The Hound of Hell	Miles Amory	64
12	1979	Too Far to Go	Jack Dennis	10
13	1979	Walking Through the Fire	Dr. Freeman	20
14	1981	The Patricia Neal Story	Dr. Charles Canton	50
15	1983	The Demon Murder Case	Richard Clarion	59
16	1984	Calamity Jane	Buffalo Bill Cody	70
17	1990	Perry Mason: The Case of the Defiant Daughter	L. D. Ryan	70
18	1990	Corporate Affairs	Arthur Strickland	10
19	1991	Keeping Secrets	Frank Mahoney	40
20	1991	California Casanova	Willie	0
21	1991	I Still Dream of Jeannie	Mr. Simpson	59
22	1992	Diagnosis Murder: Diagnosis of Murder	Frank Stevens	83
23	1993	Woman on the Ledge	Dr. Martin	10
24	1994	Beretta's Island	Barone	37
25	1994	Perry Mason: The Case of the Grimacing Governor	Harlan Richards	67
26	1996	Dallas: J.R. Returns	Cliff Barnes	54
27	2001	Blind Obsession		61
28	2004	Dallas Reunion: Return to Southfork	Self	0
29	2017	The Promise	Dr. Christopher Webber	0

Television

No.	Year	Title	Role	Vote Average
1	1954	The Secret Storm		37
2	1958	Naked City	Acting Student (uncredited)	55
3	1961	The Defenders	Jack Wilks	62
4	1973	Kojak	Ray Fromm	70
5	1973	Kojak	Teddy Maclay	70
6	1973	Kojak	Professor Lacey	70
7	1974	How to Survive a Marriage	Larry Kirby #2	35
8	1975	Beacon Hill	District Attorney	50
9	1975	Starsky & Hutch		73
10	1977	Rafferty		50
11	1977	CHiPs		68
12	1977	The Love Boat	Don Bartlett	63
13	1978	Dallas	Cliff Barnes	69
14	1979	Trapper John, M.D.		65
15	1980	Here's Boomer		53
16	1982	Hotel		68
17	1984	Highway to Heaven	Richard Osbourne	74
18	1984	Murder, She Wrote	Alex Ericson	75
19	1986	Lovejoy	Rutherford Lovejoy	73
20	1986	Matlock		71
21	1986	L.A. Law	Al Bremmer	71
22	1992	The Golden Palace	Charlie	62
23	1993	Walker, Texas Ranger	Dr. Slade	70
24	1993	Diagnosis: Murder	Alex Ridlin	71
25	1993	Diagnosis: Murder	William P. Bissell	71
26	1993	Diagnosis: Murder	Duke Fallon	71
27	1993	Diagnosis: Murder	Keith Dunn	71
28	1994	Burke's Law	Bernie Green	67
29	1994	Nachtshow	Self	0
30	1994	ER	Mr. Zwicki	78
31	1996	E! True Hollywood Story		81
32	2001	Crossing Jordan	Mr. Payton	72
33	2012	Dallas	Cliff Barnes	70