Felix Unger in The Odd Couple , opposite Jack Klugman.  Randall's other film roles included Will Success Spoil Rock Hunter? (1957), The Mating Game (1959), Pillow Talk (1959), Let's Make Love (1960), Boys' Night Out (1962), The Brass Bottle (1964), Hello Down There (1969), The King of Comedy (1983) and Gremlins 2: