Mack is an impatient guy with places to be, and almost no respect for the captain. He likes engineering, his coworkers Celci, Burt and Gunther. he also enjoys looking out at the vast void of space and exploring the stars. He’s proud to be the head of the Invincible II crew. As the ship may have its ups and downs there’s one thing Mack absolutely despises, his coworker Mark.