Doom is the nickname of a clone trooper commander during the Clone Wars. He wore a unique set of Phase II clone trooper armor composed of a green, yellow, and gray color scheme. He was involved in the battle of Ringo Vinda.
Star Wars:The Clone Wars by SteveAndersonDesign on deviantART
Obi-Wan Kenobi, the master of trolling And Anakin, the master of disobedience.
Arc-Trooper Fives by JonathanPiccini-JP on DeviantArt
Cad Bane by *T-RexJones on deviantART
Star Wars Costume Evolution: Stormtroopers - Infographic