Clayface (Arkhamverse)

Basil Karlo, also known as Clayface, made a cameo in Batman: Arkham Asylum as an inmate still imprisoned on Arkham Island.

Biography
N/A

Batman: Arkham Asylum
Batman, while searching for Arkham Warden Quincy Sharp, came across a cell behind a clear wall with no bars. A sign next to it read "Danger. Do not approach. Inmate may be impersonating other personel". The cell contained a female mannequin, white hand-prints, and excess Clayface goo. What appeared to be security guard Aaron Cash was pacing behind the wall, urging Batman to let him out of the cell. However, after rescuing the warden in the room above, another man looking like the warden appeared in the cell, claiming that the one rescued was an imposter and begged to be let out. When Batman turned around, a morphing noise sounded and in the cell appeared what seemed to be Commisioner Gordon. He simply laughed at Batman. Detective Mode revealed that the shapeshifter had no skeleton, and scanning him revealed him as Karlo/Clayface. His profile could then be read and the Riddler's riddle, "A case of mistaken identities?" was solved. Clayface commended the detective for discovering his identity, and asked him to keep it a secret, as he had a reputation to keep.

Trivia

 * The mannequin and handprints in the cell are a reference to Preston Payne.
 * Clayface will only congradulate Batman for discovering who he is if he is disguised as Sharp or Cash; as Gordon, he will only laugh mockingly no matter what.