Abraham Sapien, born Langdon Everett Caul, is a fictional character introduced in the comic book series Hellboy, created by Mike Mignola. He takes his name from "Ichthyo sapien", the fanciful species designation chosen for him by his colleagues in the 19th-century Oannes Club, and from Abraham Lincoln, on whose assassination date the Oannes Club abandoned Abe's body, leaving only a cryptic note as explanation, in a suspended animation tank beneath a Washington D.C. hospital. He is occasionally referred to as an "amphibious man."As well as regular appearances in Hellboy and B.P.R.D., Sapien has also starred in his own comics, with trade paperback collections and omnibus editions including The Drowning, The Devil Does Not Jest and Other Stories, Dark and Terrible and Lost Lives and Other Stories.