<Li> Captain Sweatpants (Ian Scott Rudolph) and Lonely Larry (Owen Thayer): are sometimes seen at the guys' favorite comic - book store . Captain Sweatpants is a middle - aged bald man who wears grey sweatpants and a City of Heroes T - shirt . Lonely Larry wears a brown suit and is extremely thin . They are also friends with Wil Wheaton . Both attend Howard's bachelor party . </Li> <Li> Cheryl (Erin Allin O'Reilly), an attendee at Penny's Halloween party in season one, episode six, "The Middle Earth Paradigm". Cheryl is the very talkative, short - haired brunette dressed as a ladybug, who shows interest in Raj . She is not identified within the episode, but her name is listed in the credits . She appears again as a Cheesecake Factory waitress in "The Pancake Batter Anomaly". </Li> <Li> Dale (Josh Brener), a replacement for Stuart at the comic - book store when Stuart goes on a date with Amy in "The Flaming Spittoon Acquisition". Also appears in "The Tangible Affection Proof" at Stuart's Valentine's Day party . </Li> <Li> Jimmy Speckerman (Lance Barber), a former high school classmate of Leonard who used to bully Leonard during their high school days on a regular basis . He comes to visit with Leonard, not realizing that his actions in high school constituted bullying . </Li>

How old are the characters in big bang