Penelope Young, to steal her research notes on the Venom-based experimental formula, 'Titan'. Unknown to everyone but the Clown Prince of Crime himself, his goal in doing this was to get his hands on Dr. He did this to capture the Medical Facility, where most of Arkham's doctors worked. The Joker's next target was Arkham West, where his superior numbers allowed the inmates to overwhelm the security guards and wrestle away control of the western part of Arkham Island. After a brief exchange of fire, Batman arrived on the scene from the Intensive Treatment Center in Arkham North and defeated the remaining inmates. After the Joker seized control of Arkham North, he dispatched four armed inmates to Arkham East, but the guards managed to stall their advance. He was carrying out his regular duties in the Botanical Gardens as Harley Quinn and an army of escaped Arkham inmates loosed from the Intensive Treatment Center in Arkham North invaded Arkham East.Ĭarl Todd remained safe for the early stages of the Joker's takeover, as the Botanical Gardens were in Arkham East, which was heavily-guarded by security officer Louie Green, and was initially viewed as unimportant. He is a janitor at Arkham Asylum, present during the Joker's takeover of the asylum.Ĭarl Todd was one of the three janitorial staff members present during the Joker's takeover of Arkham Asylum. Carl Todd first appeared in Rocksteady Game's Batman: Arkham Asylum in August 2009.