CC-4477, known as Thire, was a clone trooper commander in charge of the elite shock troopers during the Clone Wars.
Commander Thire led Supreme Chancellor Palpatine's shock troopers during the height of the Clone Wars. As the war intensified, Thire's shock troopers were tasked with the protection of the capital planet, Coruscant. Thire, however, always felt as though the Republic would never be able to muster a reliable defense of it's capital.
you can see the red stripes on his arms and legs which signify him to be a commander.