Stephen Kellerman

Doctor Stephen Kellerman was a doctor at Arkham Asylum. He was present at the asylum during the Joker's takeover. He was the doctor in charge of both Scarecrow and Poison Ivy.

Before Arkham Asylum Incident
When Quincy Sharp reopened Arkham Asylum, he hired Stephen Kellerman as psychiatrist. Dr. Kellerman treated many inmates at the asylum, Scarecrow and Poison Ivy being the most notable ones.

During his sessions with Poison Ivy, Dr. Kellerman was, unbeknownst to him, slowly being hypnotized by her phermones. At one point Kellerman disappeared, which caused Warden Sharp to question Poison Ivy as the security cameras showed her hypnotizing him. Thankfully, he was found through unknown means.

During another incident, Scarecrow somehow managed to spread his Fear Toxin all through the Asylum. He did so during an interview with Kellerman who seemed to be infected. Unknown to Scarecrow, however, Kellerman and Batman had been working together on a cure, and Kellerman had managed to fool Scarecrow. Batman then had Aaron Cash flood the Asylum with an antidote while he dealt with Scarecrow.

Arkham Asylum Incident
Dr. Kellerman was one of the doctors who was kidnapped by the Joker's Henchmen. He, along with Aaron Cash, were trapped in the Patient Observation Room, which was full of Smilex, until Batman appeared and rescued them. When meeting with the other rescued doctors and Batman in the Sanatorium, Dr. Young insisted on going to the Arkham Mansion to retrieve her notes. Cash agreed to escort her to the Mansion and, after that, to a safe hiding place. They left. Batman noticed more henchmen coming up the elevator. He advised the remaining doctors (Dr. Cassidy and Kellerman), to go back to the Patient Observation Room and hide there. They remained there for the rest of the game, and conversed in low voices about the events that happened around the island.

After Arkham Asylum Incident
It was shown that the doctors in the Patient Observation Room survived Joker's takeover (this included Dr. Kellerman). It was assumed that he returned to his usual duties at the asylum until it was closed down by Mayor Sharp.

Quotes

 * "Did you find the commissioner?" Stephen Kellerman - Commissioner AA.ogg
 * "Just after you took the elevator down, the PA was full of screaming. It was horrible." Stephen Kellerman - PA Screaming AA.ogg
 * "I suppose the mysterious Patient X was kept down on the lower floors." Stephen Kellerman - Patient X AA.ogg
 * "What's happening? The whole building started shaking." Stephen Kellerman - Building Shaking AA.ogg
 * "How much more can these old buildings take before they collapse?" Stephen Kellerman - Building Collapse AA.ogg
 * "Fireworks? What's there to celebrate?" Stephen Kellerman - Fireworks AA.ogg

Trivia

 * Dr. Kellerman was known to have treated two of Gotham City's most dangerous criminals: Poison Ivy and Scarecrow.
 * The password to Kellerman ArkhamCare file was edinburgh.