- ―Doom, during the Battle of Ringo Vinda
Doom was a Clone Trooper Commander who served under the command of Jedi Masters Tiplar and Tiplee during the Clone Wars. He led his men alongside Anakin Skywalker and the 501st Legion during the Battle of Ringo Vinda.
When debriefing during the next attack, Doom informed them that he would need backup, for he was low on manpower. General Anakin Skywalker ordered ten troopers of the 501st, led by ARC Trooper Fives and Tup, to assist him for the next wave. When very near victory in the following battle, Tup began acting strangely, as if in a trance, and unexpectedly shot Jedi Master Tiplar. The loss of the Jedi was a strong blow and the momentum the Republic had built up was very quickly reversed; a last formation of Droidekas and rocket droids was deployed and the clones were forced to retreat.
- Doom's name and armor color scheme are meant to resemble the iconic Marvel villain, Dr. Doom.