Wilcox is a large, imposing African American male. When on duty, he wears the uniform of a Belle Reve guard: a khaki-colored shirt with a golden badge on one side and his name on the other, brown pants and a brown cap with a golden badge on the front.
Wilcox and Banks watched as "Tommy" and Icicle Jr. were about to get in a fight with Professor Ojo and Brick. Wilcox instructed Banks not to activate the inhibitor collars, feeling the new prisoners needed the lesson.
He later oversaw Icicle Sr., Mister Freeze and Captain Cold's attempted riot, allowing them access to equipment that was smuggled into Belle Reve.
When the ice villains began to set their escape plan into motion, and Mr. Freeze attacked Icicle Sr., Wilcox activated Freeze's collar, thus shocking him. But when the riot went down, he was locked in a cell with Amanda Waller, Hugo Strange and Banks.