Ms. J is the temporary name of one of the new art style characters. Her clothing is modeled after that of Queen Elizabeth II, and is thus often referred to as "The Queen" by the SpyParty community. This has caused some consternation, particularly amongst Her Majesty's subjects, who find the resemblance uncanny enough that they feel some reservations about the prospect of shooting her.

According to Chris Hecker, the dog that Ms. J carries in her purse is modeled after Olive, a dog belonging to Alice, the girlfriend of John Cimino. (Ms. F is modeled after Alice herself.) However, the developer has nicknamed her Mog, after the man/dog from the movie Spaceballs. After deciding that he didn't want players shooting Mog, Chris decided to make it so that Mog would duck into the purse when the sniper's laser nears her, joking that the purse is made of kevlar.