Little is known about Captain Sweatpants, but his real name is unknown and he can be seen in the comic book store in most of his appearances. Another time he's mentioned is that he attended Stuart Bloom's art gallery showing (where he disgusted Stuart by touching all the cheese), as well as participating in the Mystic Warlords of Ka'a tournament at the comic book store and going to see the Indiana Jones movie. His nickname, Capt. Sweatpants, comes from the fact that he always wears sweatpants with a superhero t-shirt (Logo is the Statesman Star from the now-defunct "City of Heroes" MMORPG). He is portrayed by Ian Scott Rudolph who didn't have a credit for any appearance in the role until "The Occupation Recalibration" (S7E13). He appears to be a friend of Wil Wheaton since they went to see the movie Raiders of the Lost Ark. He is also on Stuart's bowling team.

He was most recently seen at a high end comic book shop called Capitol Comics owned by Jesse (played by Josh Peck), a rival of Stuart's who looks down upon Stuart and his business.  Stuart confronts him about not being in his store. Apparently he went to Capitol Comics for the free popcorn. Also, this episode is the first time in the whole series that Captain Sweatpants ever has a line,"Free popcorn".


Stuart finds Captain Sweatpants at a rival store.