Bel was a clone trooper who served in the Grand Army of the Republic during the Clone Wars under Jedi Generals Nahdar Vebb and his former master Kit Fisto.
Bel, along with Niner, was assigned by Clone Commander Fil to look after the ships while they went on their mission to Vassek's third moon. Bel and Niner were then informed by R6 that a ship matching the description of General Grievous's starfighter was approaching the fortress. A short while into the mission Bel received call that the commander, the Jedi and the remaining clones were trapped inside the fortress. They and Niner attempted to contact the Republic fleet at Bestine, but were killed by Grievous's IG-100 MagnaGuards, who fired a rocket launcher at the ship the two clones were in.