Grey (Lieutenant)

Mr. Grey was a lieutenant aboard the USS Excelsior in the 2280s. During a mission to save Commander Chekov, Mr. Grey reported that the dilithium crystals aboard Excelsior were fracturing. Just as the Excelsior was about to save the USS Enterprise-A and USS Ranger, the last crystal broke and captain Hikaru Sulu and the crew were thrown into the mirror universe. When they woke up after the entered the mirror universe, they encountered Mirror Chekov who tried to kill them. They escaped, and had to fight paralell versions of friends and foes to reach the Janus Ultima Vortex. (Star Trek: Shattered Universe)