25 Stars You Forgot Were on 'Seinfeld'

Seinfeld is now streaming on Hulu and that's reason enough to get a refresher course on the A-listers that have appeared on the beloved sitcom before making it big.

Appeared as: Tim Whatley, Jerry's dentist
Went on to be in: Malcolm in the Middle, Breaking Bad

Appeared as: Jenna, Jerry's girlfriend
Went on to be in: Sex and the City

Appeared as: Jeannie, Jerry's girlfriend
Went on to be in: Felicity, Wet Hot American Summer

Appeared as: Comedienne Sally
Went on to be in: Suddenly Susan, Kathy Griffin: My Life on the D-List

Appeared as: Jerry's girlfriend Sidra
Went on to be in: Desperate Housewives

Appeared as: Betsy, George's girlfriend
Went on to be in: Will & Grace

Appeared as: Steve, a random guy at a party in Long Island
Went on to be in: The Shield, Fantastic Four

Appeared as: Eric the Clown
Went on to be in: Swingers, Iron Man

Appeared as: Nina, Jerry's girlfriend
Went on to be in: Being John Malkovich, The 40-Year-Old Virgin

Appeared as: Ricky, Elaine's stalker
Went on to be in: Scrubs

Appeared as: Meryl, Jerry's girlfriend
Went on to be in: Friends

Appeared as: Linette, Jerry's girlfriend
Went on to be in: Saving Silverman, The Good Wife

Appeared as: Molly Dalrymple, the daughter to NBC chairman Russell Dalrymple
Went on to be in: Wild Things, Spin City

Appeared as: Beth, Jerry and Elaine's friend who Jerry's trying to date
Went on to be in: Will & Grace

Appeared as: Valerie, Jerry's girlfriend
Went on to be in: Gilmore Girls

Appeared as: Dr. Sara Siterides, Jerry's girlfriend
Went on to be in: Desperate Housewives

Appeared as: Tony, Jerry's mechanic
Went on to be in: Everybody Loves Raymond

Appeared as: Marla, Jerry's virgin girlfriend
Went on to be in: Frasier

Appeared as: Jason "Stanky" Hanky
Went on to be in: Boston Legal, The Blacklist

Appeared as: Melissa, the actress cast as Elaine on Jerry's TV show.
Went on to be in: Law & Order: SVU

Appeared as: Movie theater manager
Went on to be in: 3rd Rock from the Sun

Appeared as: Michael Barth, the actor cast as George on Jerry's TV show.
Went on to be in: Entourage

Appeared as: Jodi, Jerry's girlfriend
Went on to be in: American Pie

Appeared as: Sam, Elaine's co-worker that never moves her arms when she walks
Went on to be in: Will & Grace and various other roles on TV and film (she was already an SNL cast member when she appeared on Seinfeld)

Appeared as: Sue Ellen Mischke
Went on to be in: Desperate Housewives