Ian Scott Rudolph as Captain Sweatpants
Many may say his character is insignificant. Little is known about him apart from his famous sweatpants and superhero t-shirt. However, he is still a massive part of the show’s storyline. In his career, Rudolph has only ever had small roles, but The Big Bang Theory was his first credited role.
Eliza Dushku as Angela Page
In The Big Bang Theory, she plays an FBI agent who investigates Howard’s application to the Equipped Surveillance Satellite Team. Her appearance added humor to the four. Dushku played different roles from being the kickass slayer on Buffy, the Vampire Slayer to Dollhouse, and Bring It On.