Kosmos/Legends

Cosmos was a clone trooper who served in the Grand Army of The Republic during The Clone Wars. He was assinged with guarding the compound in which Chancellor Palpatine was having experiments conducted on the zillo beast. While standing guard, the zillo beast broke free from its restraints, breaking out of the compound and in the process killing Cosmos and his fellow troopers when the doors landed on them, killing them all instantly.