The Human Metal Detector
first appeared in Wake the Devil
as a new agent for the BPRD
. His first mission placed him in Romania
along with Elizabeth Sherman
and Bud Waller
. They end up discovering Roger
in a hidden room and accidentally awaken him. Roger kills Bud and escapes, leaving Liz in a coma and Sidney badly burned.
Sidney discovered his ability in college, when he was completing his degree in mechanical engineering. He's able to detect metals at a distance of several yards.
Sidney also appears in the animated series, voiced by Rob Paulsen, who's known for voicing the characters Raphael
, and Pinky
. He appeared in Blood and Iron, which was based on the Wake the Devil storyline.