Derrick is part of the crew of the UNSC Leviathan at the time of the battle of Reach. He is one of the six Specialists assigned to the ship. Derrick is the leviathan team's heavy weapons expert. Although he lacks expertise in almost everything else he can use his rocket launcher like he's ringing a bell. His low intelligence can often hamper the teams progress but he makes up for it with his tremendous loyalty to every single member of the leviathan team. He is voiced by Jake Crosswaite.