Loading...
Michael Costanza
Comedian and actor
New York City, USA
About Michael
Michael Costanza is a fictional character in the NBC sitcom Seinfeld, portrayed by Jason Alexander. He is Jerry's cousin and confidant, known for his neurotic personality and catchphrase 'Serenity now!' As a comedian and actor, Costanza has appeared in numerous television shows and films, including Seinfeld, The Larry Sanders Show, and Can't Hardly Wait.
Associated Podcasts
Are you Michael Costanza? Manage your profile and connect with your audience.
Claim Profile