Greg Callahan is an actor, known for Godzilla (1998), Shadow of Doubt (1998) and Partner(s) (2005).
Murder, She Wrote - Season 12
The West Wing - Season 1
Silk Stalkings - Season 5
Crossing Jordan - Season 1
Murder, She Wrote - Season 10
21 Jump Street - Season 1
Doogie Howser, M.D. - Season 4
Frasier - Season 3
Silk Stalkings - Season 2
The West Wing - Season 6
The OC - Season 4
Frasier - Season 6
Full House - Season 7
Married With Children - Season 5
21 Jump Street - Season 5
Frasier - Season 5
Crossing Jordan - Season 6
Dallas - Season 5
Crossing Jordan - Season 4
Samantha Who - Season 1
Close to Home - Season 1
Airwolf - Season 4
Frasier - Season 9
Samantha Who - Season 2
Silk Stalkings - Season 4
Murder, She Wrote - Season 3