Summer Glau as Herself
In 2009 in the season two episode “The Terminator Decoupling”, Summer Glau appeared as herself! No one does science fiction and fantasy television better than Glau. Okay, that might not be 100% true but it’s close enough. Glau has also appeared in Firefly, Serenity, The 4400, Terminator: The Sarah Connor Chronicles, Dollhouse, and Arrow.
Judy Greer as Dr. Elizabeth Plimpton
The great Judy Greer is best known as Kitty Sanchez from Arrested Development, Fatty Magoo from It’s Always Sunny In Philadelphia, Trixie from Californication, and Cheryl Tunt from Archer. Her 2014 book I Don’t Know What You Know Me From: Confessions of a Co-Star is a must-read.