Film

No.	Year	Title	Role	Vote Average
1	1972	Vampire Circus	Heinrich	58
2	1972	Henry VIII and His Six Wives	Thomas Culpeper	58
3	1977	The Disappearance	Young Man	56
4	1978	Richard II	Busby	75
5	1986	The Cold War Killers	Hugh Roskill	60
6	1986	The Alamut Ambush	Hugh Roskill	0
7	1986	The Deadly Recruits	Hugh Roskill	0
8	1997	The Lost World: Jurassic Park	Mr. Bowman	66
9	1997	Ravager	Dr. Shepard	33
10	1998	Babylon 5: In the Beginning	Coplann	72
11	1999	Galaxy Quest	Sarris	71
12	2001	Ocean's Eleven	Seller	74
13	2003	Northfork	Cup of Tea	60
14	2004	Megalodon	Peter Brazier	45
15	2012	Resident Evil: Damnation	Ataman / Ivan Judanovich (voice)	69

Television

No.	Year	Title	Role	Vote Average
1	1971	Upstairs, Downstairs	Robert	76
2	1975	Quiller	Dieter	0
3	1975	Rumpole of the Bailey		71
4	1978	The BBC Television Shakespeare	Bushy	60
5	1980	Lady Killers	Gervais Rentoul	50
6	1981	Brideshead Revisited	Etonian	79
7	1983	Chessgame		60
8	1984	Murder, She Wrote	Martin Kramer	75
9	1984	The Bill		67
10	1987	Jake and the Fatman		60
11	1991	Herman's Head	Simon	66
12	1991	Dynasty: The Reunion	Adam Carrington	55
13	1993	Walker, Texas Ranger	Philippe Brouchard	70
14	1993	Diagnosis: Murder	Art Thief	71
15	1994	Babylon 5	Hedronn	80
16	1994	Babylon 5	Warleader Na'Kal	80
17	1994	Babylon 5	Na'Tok	80
18	1994	Fantastic Four	Robin Sachs Silver Surfer (voice)	64
19	1995	Star Trek: Voyager	General Valen	78
20	1995	Nowhere Man	Alexander Hale	76
21	1995	Nowhere Man	The Voice (uncredited)	76
22	1995	Baywatch Nights	Malcolm O'Neal	61
23	1996	Pacific Blue	Wilson Dupree	53
24	1996	Nash Bridges		67
25	1996	FX: The Series	Sebastian	62
26	1997	Buffy the Vampire Slayer	Ethan Rayne	81
27	2001	Alias	Hans Dietrich	68
28	2003	NCIS	Andrew Challis	76
29	2006	Torchwood	British Professor	73
30	2009	Castle	Announcer	80