Rack.exe

Rack.exe, fully called Executable Rack Jack Cat, is one of Rack's enemies, they might be sometimes friends or allies, but that's firstly canon in the roleplaying at Roblox.

Appearance
Rack.exe is a Rack clone that was born by being created a few years ago. Differently, he only haves black eyes with glowing red pupils, they sometimes bleed when he starts to be evil, very mad or other, unlike Rack. He has been killed and defeated many times, but he revives himself, meaning he's inmortal.

Personality
Rack.exe haves aggressive behavior. He's mostly known to be evil, like other exes. Sometimes he's a little bit nice, revealed one in a Roblox RP.

Trivia

 * He's inspired by Sonic.exe, even though all EXES are inspired by that.