HMS Clement personnel
The 21st century crew of the , an Earth submarine assigned to the British Royal Navy.

Malcolm Reed's great uncle 
This future great uncle of Malcolm Reed's served as the chief engineer aboard the Clement. 

Suffering from aquaphobia, like Reed himself, he nonetheless had a distinguished naval career. Though afraid of drowning, he sealed himself in the submarine's engine room and kept its reactor operational long enough to allow its crew to escape, dying when it sank. Reed considered him a hero and was fully prepared to do the same if necessary when he was pinned by a Romulan mine in 2152. ()

Surviving crew 
These individuals were members of the crew of the Clement. Among them was Malcolm Reed's great-uncle's lieutenant. They all escaped due to their chief engineer's heroic actions. ()

Clement, HMS
 Clement, HMS