Film

No.	Year	Title	Role	Vote Average
1	1959	The FBI Story	Party Guest (uncredited)	61
2	1969	Doppelgänger	Colonel Glenn Ross	62
3	1970	The Other Man	Johnny Bryant	0
4	1970	The Psychiatrist: God Bless the Children	Dr. James Whitman	0
5	1971	Black Noon	Reverend John Keyes	61
6	1972	The Man Hunter	David Farrow	60
7	1973	The Horror at 37,000 Feet	Alan O'Neill	49
8	1973	The Norliss Tapes	David Norliss	60
9	1973	Charley-One-Eye	The Indian	48
10	1973	Satan's School for Girls	Clampett	55
11	1973	Death Race	Arnold McMillan	44
12	1974	Airport 1975	Urias	57
13	1975	The Hindenburg	Martin Vogel	63
14	1977	Secrets	Herb Fleming	0
15	1977	Code Name: Diamond Head	Johnny Paul	30
16	1979	The Return of Mod Squad	Dan	50
17	1979	Stone	Det. Cliff Bell	0
18	1981	Freedom	Michael	60
19	1981	Scruples	Bennett Hall	0
20	1981	Sizzle	Wheeler	0
21	1987	Mind Benders	Principal Borden	36
22	1989	Dark Holiday	Jimmy LePere	0
23	1989	Rush Week	Dean Grail	52
24	1990	Blue Bayou	Barry Fontenot	0
25	1992	Stormy Weathers	Andrew Chase	47
26	1995	The Invaders	David Vincent	45
27	1996	Terminal	John Cabot	49
28	2001	A Beautiful Mind	Governor	79
29	2006	Spectropia	Franklin DeMott	60
30	2007	Broken English	Peter Andrews	60
31	2014	The Green Girl	Himself	60

Television

No.	Year	Title	Role	Vote Average
1	1952	Cavalcade of America	Mickey Hubbard	35
2	1955	Gunsmoke	Harry	66
3	1955	Gunsmoke	Ab	66
4	1958	Peter Gunn		65
5	1959	The Untouchables	Denny Brannon	79
6	1959	The Untouchables	Red Thomas	79
7	1963	The Fugitive	Carl Crandall	72
8	1965	The Long, Hot Summer		50
9	1965	The F.B.I.	Larry Drake	55
10	1967	The Invaders	David Vincent	68
11	1971	The Psychiatrist	Dr. James Whitman	60
12	1977	Quinn Martin's Tales of the Unexpected		60
13	1977	The Love Boat		63
14	1978	Battlestar Galactica	Croft	71
15	1979	From Here to Eternity	Capt. Dana Holmes	68
16	1980	From Here to Eternity	Major Dana Holmes	30
17	1981	Falcon Crest	Nick Hogan	55
18	1982	Hotel		68
19	1984	Murder, She Wrote	Lt. Ted Misko	75
20	1984	Murder, She Wrote	J. K. Davern	75
21	1984	Murder, She Wrote	Sheriff Howard Landry	75
22	1984	1st & Ten	Teddy	65
23	1987	Sacrée soirée	Self	65
24	1988	War of the Worlds	Van Order	62
25	1990	Law & Order	D.A. Alfred Wentworth	74
26	1990	Law & Order	Victor Panatti	74
27	1990	Law & Order	Mr. Kushner	74
28	1991	Dark Shadows	Roger Collins / Rev. Trask	77
29	1991	An Inconvenient Woman	Sims Lord	52
30	1991	P.S. I Luv U		58
31	1992	Coucou c'est nous !	Self	65
32	1993	Walker, Texas Ranger	Colonel Dayton	70
33	1993	The X-Files	Jeremiah Smith	84
34	1994	Touched by an Angel	Senator Guy Hammond	72
35	1995	The Invaders	David Vincent	55
36	1996	Poltergeist: The Legacy	Clayton Wallace	62
37	1997	Oz	Leader of Aryan Brotherhood	80
38	1999	The Sopranos	Dr. Baumgartner	87
39	1999	Law & Order: Special Victims Unit	Curtis Johansen	79
40	2001	Law & Order: Criminal Intent	Sheridan Beckworth	76
41	2006	Conviction	Ralph Hanlon	57