Krell's battle cruiser
Krell's battle cruiser was a Klingon  battle cruiser in service during the 2150s.

In 2154, the battle cruiser, under the command of Admiral , was dispatched to destroy Qu'Vat Colony to eradicate the Klingon augment virus forged there. The ship was intercepted by Earth Starfleet starships  and  in orbit of Qu'Vat, provoking a battle that also involved two . The battle concluded when a sample of the virus was transported aboard Krell's cruiser, infecting the ship's crew until an antidote could be delivered. ()

Personnel 

Unnamed Klingon starships