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Patrick Thomas O'Brien is an American actor. He is perhaps best known for playing the role of Mr. Dewey, the math teacher from Saved by the Bell.
Stuart Little
1999
Eight Days a Week
1997
Girl in the Cadillac
1995
Bill Apablasa
2 shared
Nathan Lane
Michael Davis
Bailey Stender
1 shared
Marcia Moran
Eric Lutes
actor
Airborne
1993
Camp Cucamonga
1990
