Rob is a physical therapist and the lover of Jean-Paul "Frenchie" Duchamp. He is a business partner at Frenchie's restaurant and also helps Frenchie in the use of his prosthetic legs. Rob also helped Frenchie's former colleague, Marc Spector, recover from injuries suffered at the hands of the bloodthirsty mercenary known as the Bushman.
Although initially impressed with Marc's history as the superhero Moon Knight, he later grew embittered towards Spector, particularly over Spector's dismissal of Frenchie's friendship.
Rob Silverman is a homosexual.