Question: who played the clerk in the blues brothers
Answer: The film is also notable for the number of cameo appearances by established celebrities and entertainment - industry figures , including Steve Lawrence as a booking agent , Twiggy as a `` chic lady '' in a Jaguar convertible whom Elwood propositions at a gas station , Steven Spielberg as the Cook County Assessor 's clerk , John Landis as a state trooper in the mall chase , Paul Reubens ( before Pee - wee Herman ) as a waiter in the Chez Paul restaurant scene , Joe Walsh in a cameo as the first prisoner to jump up on a table in the final scene , and Chaka Khan as the soloist in the Triple Rock choir .