Frey was nominated for the Academy Award for Best Supporting Actor for his performance as Motel the tailor in Norman Jewison's 1971 film Fiddler on the Roof (he had appeared in the original Broadway musical production as Mendel, the rabbi's son). His other film credits included roles in The Magic Christian (1969), Tell Me That You Love Me, Junie Moon (1970), Where the Buffalo Roam (1980), Up the Academy (1980), and Tattoo (1981).