Lord Commander is shown to be extremely cruel, psychopathic, sadistic, manipulative, monstrous, power-mad, and tyrannical, not hesitating to use his powers to hurt, mutilate, or kill whoever displeases him, which he takes great enjoyment from. He cares very little for other life and is willing to slaughter an entire prison camp in order to set up a trap for Gary and Avocato in . The Lord Commander also appears to enjoy playing with his victims and takes great pride in being able to outsmart them, appearing angered when his plans do not surprise those he wants to terrorize. He is also deeply selfish, egomaniacal, and arrogant, as he desires to become a titan while not caring about what happens to the universe as a result. His arrogance stems from the fact that he believes that the titans chose him to become one of them.. Little is known about the origin of Lord Commander except he was a member of the Infinity Guard named Jack who was also John Goodspeed's friend for 29 years. During Chapter Eight as the energy wave and antimatter blast collided with the ship, he gained his powers and an evil presence overcame. The Lord Commander is the main antagonist of the 2018 animated series Final Space. He is the evil overlord of Terra Con Prime Sector 18650, as well as the archenemy of the Galaxy One, Gary Goodspeed in particular. He was voiced by David Tennant, who also played Barty Crouch Jr. in Harry Potter.