Thomas Kemper is Johnathan Gabriel's and Tycho Brahe's cat. His name is taken from a soda bottling company. He has his own degree in computing and has built several inventions used in the Penny Arcade comic.
Thomas is a Support Character in Penny Arcade Adventures: On the Rain-Slick Precipice of Darkness, under the name T. Kemper, where he is described as 'lazy, even by cat standards', and can be summoned for the support attack Grooming (or Dooming). The overwhelming majority of the time, Kemper will stroll onto the battlefield and lick himself inappropriately, which inflicts 1 damage on all enemies. However, according to his dossier, there is a 1 in 2,104,294 chance that he will "unleash a devastating hairball".
Players earn the Stray Cat achievement for recruiting T. Kemper to their team, and can earn the Nine Lives achievement by killing an enemy using his basic attack.
- Laser constructed for the sole purpose of opening the packaging of a controller.
- Time Helmet for Gabe to travel forward in time and pick up Front Mission 4 early.