Crash

Crash is one of the many playable Characters in Quake 3 Arena, that has a background related to the Doom games.

Biography
Once, she was Doom's military instructor. Now the Arena Eternal tests Crash's mettle to the extreme-extreme patience, that is. She is the trainer who introduces new warriors to the skills of battle.

Trivia

 * Crash is not considered Canon in any Doom game. And is thus only canon in Quake III Arena.