I couldn't pick 5

Larry David
Marty Funkhouser
Richard Lewis
Leon Black
Alan Partridge
Seinfeld
George Costanza
Frank Costanza
Basil Fawlty
Sgt Bilko
Sam Malone
Woody
Fraiser (Cheers and Frazier)
Cliff Clavin


Larry David in Curb is genius... As is Sgt Bilko (very underrated)