Ryan / Yan

The main character of "Call of Cthulhu: Prisoner of Ice" video game is a young U.S. intelligence officer, Lt. Ryan, who has been assigned to a British submarine, HMS Victoria, for a special mission. As the game begins, the submarine is fleeing the Antarctic after rescuing a Norwegian who has recently escaped from a secret German base in the Antarctic (it is later revealed that the base is built atop the Ancient Ruins mentioned in At the Mountains of Madness). Along with the Norwegian, the sub has picked up two mysterious cargo crates stolen from the Nazis.

Later in the game, in Argentina, Ryan meets John Parker, the central character from Shadow of the Comet, and reveals the links between the two games. Narackamous, the main antagonist of Shadow of the Comet, also returns.
It is revealed that Ryan's real name is Yan Parker.