Film

No.	Year	Title	Role	Vote Average
1	1970	Patton	Captain Richard N. Jenson	75
2	1971	Fools' Parade	Junior Kilfong	68
3	1972	Fireball Forward	Sgt. Andrew Collins	50
4	1973	Cahill: United States Marshal	Struther	61
5	1974	Dirty O'Neil	Jimmy O'Neil	46
6	1975	Stowaway to the Moon	Astronaut Dave Anderson	58
7	1975	Murph the Surf	Arnie Holcomb	10
8	1975	Mitchell	Salvatore Mistretta	32
9	1975	The Kansas City Massacre	Alvin 'Creepy' Karpis	47
10	1976	The Last Hard Men	Shiraz	62
11	1976	Kiss Me... Kill Me	James Deukmajian	70
12	1977	Twilight's Last Gleaming	First Lt. Louis Cannellis	64
13	1978	The Swarm	Dr. Newman	50
14	1979	Norma Rae	Wayne Billings	72
15	1979	The Fantastic Seven	John Heinlein	15
16	1980	Belle Starr	Latham (as Morgan Paul)	60
17	1980	Fade to Black	Gary Bially	56
18	1982	Blade Runner	Holden	79
19	1983	Hells Angels Forever	Narrator (voice)	67
20	1984	Surf II: The End of the Trilogy	Chuck's Dad	48
21	1986	GoBots: Battle of the Rock Lords	Matt (voice)	55
22	1989	Out Cold	Hunter #1	61
23	1996	Uncle Sam	Mayor	48
24	2007	Dangerous Days: Making Blade Runner	Self	79

Television

No.	Year	Title	Role	Vote Average
1	1955	Gunsmoke	Ham Pitchford	66
2	1955	Gunsmoke	Brinker	66
3	1965	The F.B.I.	Nat Wenning	54
4	1965	The F.B.I.	Tony Baughmiller	54
5	1967	Ironside	Martin Lowell	68
6	1967	Ironside	Pete Karns	68
7	1970	Dan August	Gibbs	68
8	1971	Bearcats!	Don Kemper	62
9	1972	Emergency!	Dr. Mike Williams	78
10	1972	The Waltons	Frank Taylor	71
11	1974	Petrocelli	Dan Carter	71
12	1975	Bronk	Lacy	62
13	1976	Baa Baa Black Sheep	Congressman Mackintosh	76
14	1976	Quincy, M.E.	Defense Attorney	75
15	1977	The Fantastic Journey	Argon	59
16	1978	Kaz		50
17	1978	Centennial	Philip Wendell as Adult	77
18	1980	Beyond Westworld	Parker	54
19	1984	Challenge of the GoBots		62
20	1984	Challenge of the GoBots	Matt Hunter (voice)	62