Film

No.	Year	Title	Role	Vote Average
1	1982	G.B.H.	Big Nick Rafferty	48
2	1986	Into the Darkness	Jeff Conti	20
3	1986	Gunpowder	Platoon Commander	20
4	1986	Brick Is Beautiful	Police Officer (as John Ryan)	0
5	1989	Angel Voices	Nightclub Manager	0
6	1991	Delta Force 3: The Killing Game	Sergei (as John Ryan)	38
7	1992	The Assassinator	Chris McCall	0
8	1992	The Eye of Satan	Camille Muhamed	35
9	1993	C.I.A. II: Target Alexa	Ralph Straker (as John Ryan)	45
10	1994	American Cyborg: Steel Warrior	Cyborg (as John Ryan)	50
11	1994	Squanto: A Warrior's Tale	Miles Standish	67
12	1995	The Heidi Chronicles	Nick	75
13	1996	The Sweeper	Richman	45
14	1999	The Adventures of Young Indiana Jones: Adventures in the Secret Service	Mister Max	48
15	2009	The Butcher	Illegal Surgeon	53
16	2017	Out of the Wild	Tom Essex	65
17	2023	Mancunian Man: The Legendary Life of Cliff Twemlow	Self	80

Television

No.	Year	Title	Role	Vote Average
1	1984	Murder, She Wrote	Jack Conroy	75
2	1985	MacGyver	Eddie	77
3	1993	seaQuest DSV	Captain Finius Wideman	70
4	1994	Babylon 5	Troublemaker	80
5	1994	Gargoyles	King Arthur (voice)	81
6	1996	Dark Skies		73
7	1996	EZ Streets		64
8	1997	Buffy the Vampire Slayer	Colonel George Haviland	81
9	1997	Roar	Fergus	62
10	1999	L.A. Heat		73
11	1999	Crusade	Technomage	67