|Full Name||Cosmo Trouble|
|Home||Downtown District, Anywhere City|
Cosmo Trouble is a member of the Loonies gang and a resident of the Downtown District of Anywhere City. Claude Speed takes a job from Cosmo Trouble,<ref name="Cosmo Trouble">Elmo: "Hey, Jumbo! You should meet Cosmo Trouble, Downtown. He's got a bonkers mad job for you!" (from the Who's Behind You! mission)</ref> which turns out to be an ambush involving three Zaibatsu hitmen.<ref name="Cosmo Trouble1">Elmo: "Jumbo, it's me, Elmo. That call was a hoax. Your ass has been set up by my bonkers mad brother who's sent three serious hitmen after you. You'd better kill them - quick." (from the Who's Behind You! mission)</ref> However, Claude kills the attackers.<ref name="Cosmo Trouble2">Elmo: "Maybe you ain't so crazy, Jumbo, 'cos those hitmen are all history." (from the Who's Behind You! mission)</ref>
- His name is most likely a play on cause more trouble.
- GTA 2