Ike is a ghoul explorer that the Prisoner encounters in the Grand Canyon. He is trapped on a landmine and the Prisoner can choose to save him or choose to let the mine go off, resulting in Ike's death.
Ike has not appeared in, nor is he mentioned in any published game. He was to appear only in Van Buren, the canceled Fallout 3 by Black Isle Studios. It is not certain if he will appear in any future Fallout game.