CelebritiesPosted byShowbiz Cheat Sheet
As much as Seinfeld is beloved for its main cast of characters, the show also relied heavily on a large supporting cast. This included George Costanza’s (Jason Alexander) father, Frank Costanza, played by Jerry Stiller. The comedian is remembered fondly for the rage-filled, crotchety role he played on the show — showing just how short George’s fall from the tree was. However, Jerry Stiller also caused one of the biggest Seinfeld bloopers in history — he even had Jason Alexander rolling on the floor.