1. American Horror Story star Evan Peters guest starred on Phil of the Future as the adorably awkward Seth Wosmer.

2. Years before she starred in Girls Trip, Tiffany Haddish played Charlotte, a tour guide who taught Chelsea about carnivorous plants, on That's So Raven.

3. Melissa McCarthy voiced the character of DNAmy, a geneticist obsessed with stuffed animals, on Kim Possible.

4. Sandra Oh voiced news reporter Marsha Mitsubishi in several episodes of The Proud Family before Grey's Anatomy began.

5. Before playing Jerry on Parks and Rec, Jim O'Heir guest starred on The Suite Life of Zack and Cody as Maynard's dad.

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