Film

No.	Year	Title	Role	Vote Average
1	1963	PT 109	Radioman (uncredited)	59
2	1964	Ride the Wild Surf	Charlie	48
3	1970	The Young Country	Stephen Foster Moody	80
4	1970	House of Dark Shadows	Jeff Clark	66
5	1971	River of Gold	Marcus McAllister	0
6	1973	A Little Bit Like Murder	Jeff	0
7	1974	Killer Bees	Dr. Helmut van Bohlen	43
8	1974	This Is the West That Was	Narrator	0
9	1975	Flash and the Firecat	Firecat	70
10	1976	Nashville Girl	Kelly	57
11	1977	Ruby	Dr. Paul Keller	42
12	1980	Conquest of the Earth	Andromus	65
13	1984	The Act	Deputy Police Chief	20
14	1989	Chameleons	Mayor Munro	0
15	2019	Master of Dark Shadows	Self	91

Television

No.	Year	Title	Role	Vote Average
1	1953	You Are There		57
2	1959	The Twilight Zone	David Mitchell	84
3	1961	Dr. Kildare	Karl Bjorstrand	55
4	1962	The Gallant Men		60
5	1963	Redigo	Mike	50
6	1965	The Big Valley	Walt Tompkins	61
7	1966	Dark Shadows	Jeff Clark / Peter Bradford	72
8	1967	Ironside		68
9	1970	McCloud		71
10	1970	Night Gallery	George Beaumont (segment "You Can Come Up Now, Mrs. Millikan")	78
11	1971	Alias Smith and Jones	Danny Bilson	69
12	1971	Alias Smith and Jones	Hannibal Heyes (alias Joshua Smith)	69
13	1973	Faraday and Company	Claude Millgren	0
14	1974	The Rockford Files	Travis Buckman	75
15	1975	Wonder Woman	Jack Corbin	70
16	1976	Quincy, M.E.	Dr. Paul Taggart	75
17	1977	The Hardy Boys / Nancy Drew Mysteries		71
18	1977	Aspen	Max Kendrick	60
19	1980	Galactica 1980	Andromus	61
20	1986	Matlock		71