Sentences with phrase «twin sister missy»

Returning guest stars include Laurie Metcalf as Sheldon's mother Mary and Courtney Henggeler as his twin sister Missy, the latter of whom is making her first appearance since Season 1; John Ross Bowie as Kripke and Brian Posehn as Bert, the gang's CalTech coworkers; and Wil Wheaton as himself, Sheldon's frenemy.