Peter McCain

"You'll be our only advantage now."

- Peter's friend trying to contact him.

Dr. Peter McCain is a character in the Call of Duty: Zombies storyline. He is never actually heard, but there are references to him.

Biography
Peter McCain was an OSS spy sent to infiltrate Group 935. He originally worked as a lab assistant at Der Riese, but was then transferred to Verrückt, another Group 935-controlled facility. When he was captured, a Marine Recon team led by Tank Dempsey was sent to Verrückt to rescue him. It is widely believed that he was killed before they arrived, but not confirmed, and Dempsey, the only survivor of the Recon team, was captured by Group 935 and experimented on. It was thought that the hanging man in Shi No Numa was Peter, but the Call of Duty: ZOMBIES version of the map came out featuring the Peter's Grave easter egg instead, but also in the Call of Duty: ZOMBIES story, Richtofen turns into a Zombie. As the hanging man is missing a hand, it is possible that Peter's hand is the one on the dentist chair in Verrückt, or on the power switch in Verrückt or Der Riese.