Jonas Rust

From Tardis Wiki, the free Doctor Who reference

Jonas Rust, born Alain Auguste Delesormes Jr, was a homicide detective in New Orleans.

He helped the Eighth Doctor in his effort to retrieve his stolen amulet whilst investigating a murder. Rust deceived the Doctor, and planned to use his artron energy to astral project himself to Lyon to retrieve the amulet. Rust then summoned a demon to kill the Doctor. This failed and the demon ate Rust. (PROSE: The City of the Dead)