Episode Overview
Sheldon wants to search for life on other planets and Mandy answers Georgie's marriage proposal. Also, Missy is caught between two friends.
Guest Stars
Wyatt McClure
Billy Sparks
Wallace Shawn
John Sturgis
Ed Begley Jr.
Grant Linkletter
Melissa Peterman
Brenda Sparks
Wendie Malick
Linda Hagemeyer
Dhruv Uday Singh
Dr. Prakash
Brandee Steger
Dr. Bell
Stewart Skelton
Dr. Adams
Janet Song
Dr. Cheng
Jim Hanna
Dr. Hayes