Greg Callahan
Acting
2007
Samantha Who?
Fake Dad
2005
Close to Home
Judge
2003
The O.C.
Plainclothes Cop
2001
Crossing Jordan
Mr. Montgomery
2000
Alien Fury: Countdown to Invasion
Secretary of Defense
1998
Godzilla
the Governor
1998
Shadow of Doubt
Judge Nathan
1997
The Visitor
NSA General
1995
1993
Frasier
Rev. Franklin
1993
Frasier
Doctor
1990
Days of Thunder
Dr. Gastner
1987
Full House
Mr. Benton
1987
Married... with Children
Bank President
1984
Murder, She Wrote
Edward Delaney
Infos
Full Name
Greg Callahan
Greg Callahan
Gender
Unknown
Unknown