The ARC Trooper nodded. His brows lifted in pleasant surprise that the boy was apparently personally familiar with them, although he wasn't quite sure what to expect of them being described as older. True enough that they were engineered to age twice as fast as normal humans, but he'd never seen any looking much older than his current range.

     "Oh! I know Rex. Used'ta be a part'uv the Five Hundred an' First with him, before I got promoted to ARC Trooper. But we'd still serve alongside'uv them when needed." He smiled. Any friend of Rex's was a friend of his. "I know Wolffe too, though not as well. Can't say I know a Gregor... Anyway, th' name's Fives."