As part of WoW’s recent 8.1.5 public test server patch, there’s a new character roaming the Alliance stronghold of Stormwind Keep. His name is Stanley, but it doesn’t take a goblin rocket scientist to figure out that he’s a reference to Stan Lee. He’s got the hair, the mustache, and the glasses.
Most importantly, though, he periodically greets people by shouting “Excelsior!”