John Kassir was born on October 24, 1957, in Baltimore, Maryland,[1] to an Iraqi father from Mosul and a Syrian mother from Mardin, present-day Turkey.

[7] As a stand-up comic, he has opened for the likes of Lou Rawls, Tom Jones, The Temptations and Four Tops on their TNT Tour, Bobby Vinton, Richard Belzer, U2, and Harry Blackstone Jr. among others.

[8] His film credits include, And Then There Was Eve as G. Alexander, Flora & Ulysses as Ulysses', Hellblazers as Rick, Jack the Giant Slayer, Monster Mash as Igor, Monster Mutt as Pet Shop Pete, Reefer Madness: The Movie Musical as Ralph Wiley and Uncle Sam, Smothered and Spy Hard as Rancor Guard.

In television, he played the Bulgarian kicker, Zagreb Shkenusky, for 7 years in the HBO comedy series 1st & Ten, about a fictional football team.

His other live-action credits include sketch-acting on The Amanda Show and a portrayal of Shemp Howard in the 2000 TV biopic The Three Stooges, produced by Mel Gibson, and Ralph in Reefer Madness: The Movie Musical.

[10] His voice is featured in the games Shadows of the Damned and Metal Gear Rising: Revengeance as Hell demons and Desperado Enforcement captain Monsoon, respectively.

Additionally, he voiced Jibolba in the Tak and the Power of Juju video game series, Pete Puma in The Looney Tunes Show, Scissorsmith in Samurai Jack, and Mervis and Dunlap in CatDog.

A few of his many theater credits include: originating the role of Kenny in Three Guys Naked From The Waist Down (also starring Scott Bakula), for which he was nominated for both a Drama Desk and an Outer Critics Circle award.