Andras is a demon and Marquis of Hell.
History
The demon Andras was possessing a girl in East Africa in 1890. A priest named Ota Benga was called in to perform an exorcism, but he decided that the demon should not return to Hell either. Instead, he imprisoned the creature in his own body.
Andras remained a demon within the body of Benga for over a century, until he was visited by B.P.R.D.-Agent Ashley Strode. Strode was contacted by Sybacco, a servant of Andras who wanted to release his master in order to rise the hierarchy of Hell. This demon hold the soul of a young boy hostage, threatening to take child's soul to Hell if his demands were not met.
Benga and Strode made a plan on how to kill the marquis.
Benga and Strode traveled to the Spiritual Plane, where they battled with Andras and drove him out the Benga's old body. Andras possessed a goat which was then killed by Strode.