Tina Fey didn't know she worked with 'Mean Girls' star on '30 Rock'

Tina Fey says that casting Gretchen Wieners in the new 'Mean Girls' movie musical was a tough task – and she ended up choosing an actress she'd worked with on '30 Rock' without realizing it.

Tonys 2018: Tina Fey and Jeff Richmond on 'Mean Girls' and the Intersection of Musicals and

Tina Fey's Instagram, Twitter & Facebook on IDCrawl

Tina Fey Goes Lightly on EW Cover and Talks 'Mean Girls,' Sarah Palin, Tracy Morgan & 'Bossypants

Tina Fey: Openly Fey — Brandon Voss

Who Is Tina Fey's Husband? All About Jeff Richmond

Mean Girls Gretchen Actor Reflects On Meaningful Tina Fey Reunion 11 Years After Iconic Sitcom

What Tina Fey Wants

How did Kansas City actress get big role in new 'Mean Girls' movie? Tina Fey chose her

So fetch! Lindsay Lohan and Tina Fey REUNITE at Mean Girls premiere in NYC alongside new cast featured in musical version of the iconic film

Tina Fey reunites with '30 Rock' costars Jane Krakowski, Jack McBrayer

Tina Fey To Headline 'The Four Seasons' Comedy Series For Netflix

10 Shows & Moves We Didn't Know Tina Fey Produced

30 Rock Stars Play Tina Fey's Famous 'Body Doubles' in New Booking.com Super Bowl Commercial