<P> Patrick Thomas O'Brien ( born January 26 , 1951 ) is an American actor . He is perhaps best known for playing the role of Mr. Dewey , the math teacher from Saved by the Bell . </P>
<P> Patrick Thomas O'Brien ( born January 26 , 1951 ) is an American actor . He is perhaps best known for playing the role of Mr. Dewey , the math teacher from Saved by the Bell . </P>
who played mr dewey on saved by the bell
who played mr dewey on saved by the bell
Patrick Thomas O'Brien
Patrick Thomas O'Brien