Abraham "Abe" Sapien (born Langdon Everett Caul) is a member of the B.P.R.D.. Abe is a humanoid amphibious man, discovered in a Washington, D.C. basement in November of 1978. Abe has been with the Bureau ever since, as he endeavors to discover the truth about his identity. First appearing in Seed of Destruction, he is one of the longest running main characters alongside Hellboy and Liz Sherman, and has featured in several offshoot comics under his own name.