Former “Saturday Night Live” star Jan Hooks has passed away at the age of 57 after a “serious illness.”

The funny lady graced the SNL stage from 1986 to 1991 with hilarious impersonations of everyone from Kathie Lee Gifford to Hilary Clinton.  Most famously though, she played one half of “The Sweeney Sisters” on the sketch show.

Hooks stayed in the NBC family through the years, even playing Jenna’s mother on Tina Fey’s comedy, “30 Rock.”

Other roles the Emmy nominated actress took on included Carlene Frazier Dobber on “Designing Women” for two years and even lent her voice to the animated series “The Simpsons” and “Futurama.”

Stars took to twitter to show their love for Hooks.  Family Guy creator Seth MacFarlane said, “Jan Hooks still stands out as one of the funniest cast members in SNL history. Very sorry to read about her passing.

Seth Meyers also called her “One of the all time greats” on the social media website.

Click here to see some of Hooks funniest moments on the silver screen!