(I didn't create this drawing, the following description is of my creation) ARC Trooper Shark (ARC-5637) is an ARC Trooper who helped fend off the separatist attack on Kamino, and later survived the war to serve under Jedi Masters like Pablo Jill and Depa Bellaba. He was killed in the early phases of the Battle of Mygeeto under the command of Jedi Master Ki Adi Mundi.
The Galactic Marines were an elite fighter force in the clone wars. And after the clone wars they became Imperial Marines, serving has hand picked elite soldiers. Trained for rigorous environment such as snow.
Commander Bly - A clone commander who led the Star Corps under Jedi General Aayla Secura in Star Wars: The Clone Wars and in Star Wars: Revenge of the Sith. When Order 66 was issued, Bly executed Secura on Felucia.