32. Izzy Mandelbaum
Best-known episode: "The English Patient"
"Mandelbaum! Mandelbaum! Mandelbaum!" Lloyd Bridges' portrayal of the octogenarian palooka at the Seinfelds' retirement community will forever be remembered by that three-word chant and his catchphrase, "It's go time!" As legend has it, he once trained with Charles Atlas in the Fifties ("1850s?" Jerry wonders aloud) and he's willing to defend it by lifting anything – even if it means throwing out his back. It's a trait he shares with his family members, who each wind up in the hospital lifting things, but hey, at least they've got each other, and that chant. KORY GROW