Zookeeper (comics)


Zookeeper peeling off his fake skin in Teen Titans vol. 3 #14 (October 2004).
Publication information
Publisher DC Comics
First appearance Teen Titans vol. 3 #13 (September 2004)
Created by Geoff Johns
Tom Grummett
In-story information
Alter ego Samuel Register
Team affiliations Secret Society of Super Villains
Notable aliases Dr. Register
Abilities Metamorphic ability to transform into any animal.

Zookeeper, aka Dr. Samuel Register, is a fictional character from the Teen Titans comics.

Publication history

Zookeeper first appeared in Teen Titans #13-15 (Sep. - Nov. 2004) and was created by Geoff Johns and Tom Grummett.

Fictional character biography

Dr. Samuel Register worked with Mark and Marie Logan in Africa. He despised their rambunctious son Garfield who constantly caused damage in his lab. He was (and still is) obsessed with people calling him "Dr. Register" and nothing else.[1]

After Logan's parents successfully cured Garfield of Sakutia, Register went on to try to finish their work. He became mad for results and inhumanly slaughtered animals in experiments which produced grotesque mutations. This earned him the nickname "Zookeeper".[2]

In the "Beast Boys and Girls" storyline, Register stole a sample of Sakutia to try to mutate it like Garfield's parents did. He accidentally infected himself and every kid in San Francisco. When Beast Boy was infected, the virus in him was canceled out and he was cured.[2]

Zookeeper injected venom from the Sydney funnel-web spider into Garfield and attempted to dissect and extract the cure to Sakutia from him. Cyborg and the other Titans kept Register busy while Raven healed Beast Boy. Wanting to stop Zookeeper desperately, Garfield reinfected himself with Sakutia. His powers back to speed, Beast Boy fought and defeated Zookeeper. He also found a way to cure the kids that were infected. Apparently, Register is immune to Sakutia like Beast Boy.[3]

During the Villains United Infinite Crisis Special, Mammoth broke Zookeeper out of prison. He then joined Alexander Luthor, Jr.'s Secret Society of Super Villains.[4]

Some time later, Zookeeper was recruited by Superboy-Prime as part of a new version of the Legion of Doom.[5]

Powers and abilities

Zookeeper can turn into any animal at will, just like Beast Boy. However, his side effects are different from Garfield's. His skin is purple and scaly and his eyes and hair did not change color with his skin.


  1. Teen Titans vol. 3 #14 (October 2004)
  2. 1 2 Teen Titans vol. 3 #13 (September 2004)
  3. Teen Titans vol. 3 #15 (November 2004)
  4. Villains United: Infinite Crisis Special
  5. Teen Titans vol. 3 #98
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