Film

No.	Year	Title	Role	Vote Average
1	1965	My Blood Runs Cold	Owen Farley	45
2	1970	There Was a Crooked Man...	Deputy	68
3	1971	O'Hara, United States Treasury: Operation Cobra	Capt. Shafer	100
4	1977	Once Upon a Brothers Grimm	Prince Charming	0
5	1978	Mitzi... What's Hot, What's Not	Self	0
6	1980	Tourist	Pepi Virgil	80
7	1985	Code Name: Foxfire	Larry Hutchins	0
8	1997	Scorned 2	Dr. Greenfield	32
9	2007	The Invincible Iron Man	Howard Stark (voice)	62
10	2017	David's Dinosaur	Professor Henry Longbottom	0
11	2020	The Story of Soaps	Self	70
12	2021	Candy Coated Christmas	Fred Gallant	62

Television

No.	Year	Title	Role	Vote Average
1	1965	Mister Roberts		75
2	1965	Hank		35
3	1973	The Young and the Restless	Eric Forrester	70
4	1974	Dinah!	Self	67
5	1976	The Rear Guard	Don Crawford	0
6	1976	Alice		71
7	1977	Three's Company	Alan	77
8	1977	Three's Company	Doug Cooper	77
9	1977	CHiPs		68
10	1977	The Love Boat	Mark Bridges	63
11	1978	Diff'rent Strokes		70
12	1979	Hart to Hart		68
13	1979	Trapper John, M.D.		65
14	1980	Magnum, P.I.	Roland Martine	73
15	1980	Magnum, P.I.	Nolan Atherton/F. Scott Fitzgerald	73
16	1981	Dynasty		65
17	1981	Hill Street Blues		76
18	1981	Simon & Simon		67
19	1982	Hotel		68
20	1982	Family Ties	Tuxedo Man	73
21	1982	Matt Houston		62
22	1982	Remington Steele	Norman Austin	71
23	1982	Newhart		71
24	1983	Masquerade		50
25	1984	Highway to Heaven		74
26	1984	Murder, She Wrote	Harrison Fraser III	75
27	1985	Code Name: Foxfire	Larry Hutchins	0
28	1985	Moonlighting	Robert	75
29	1985	Amazing Stories	emcee	75
30	1985	Amazing Stories	Jerry Lane	75
31	1986	Blacke's Magic		60
32	1986	L.A. Law	Barry Graham	71
33	1986	Sidekicks		60
34	1987	The Bold and the Beautiful	Eric Forrester	55
35	1993	Acapulco H.E.A.T.	Lyle Decker	51
36	2001	Good Day Live	Self	30