"Boss" was the nickname of an elite clone commando who was part of Delta Squad during the Clone Wars, serving with commandos Fixer, Sev, and Scorch.

Though a natural leader, Boss was relatively taciturn, and often when he did speak, it was to issue an order to his squad. Boss earned the respect and loyalty of his Delta Squad comrades and did his best to repay their faith in him with strong, effective leadership. He cared a great deal for his squad mates and, like most other clone commandos, viewed his team as brothers. 

Despite being raised and trained by Cuy'val Dar sergeant Walon Vau, Boss came to speak with Jango Fett's Concord Dawn accent and speech patterns—though this trait was common to the flash-learned standard clone troops, as well. 

Boss Should sound like either one of his voice actors; Temuera Morrison, or Dee Bradley Baker.