Riley Aldrin Shepard

Universe :	Prime Timeline
Name :	Riley Aldrin Shepard [1]
Species :	Humans

A Starfleet Academy cadet, Riley joined in 2370. His number was C-95304699427 and he specialised in tactical operations. Riley led Red Squad, an elite formation at the Academy. In 2372 he sabotaged Earth's power grid as part of Admiral Leyton's attempt to force the President into tightening security against the Founders. [2]

In 2373, Shepard was assigned to a training mission aboard the Defiant-class USS Valiant. When the ship was stranded behind enemy lines and the officers killed, Shepard was granted a field promotion to Lieutenant by the Acting Captain, Cadet Tim Watters. He served at the helm during the ships continued mission in Dominion space. Shepard was killed when the Valiant was destroyed in battle with a Dominion battleship. [1]

Colour key

Canon source

Backstage source

Novel source

DITL speculation

Associated with

Associated with Deep Space Nine

Played by

Series	Season	Actor	Film / Episode Title
DS9	4	David Drew Gallagher	Paradise Lost
DS9	6	David Drew Gallagher	Valiant

References

#	Series	Season	Source	Comment
1	DS9	6	Valiant
2	DS9	4	Paradise Lost

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Last updated : 29 Oct 2025

Series :	DS9 Season 6
Episode :	Valiant

Series :	DS9 Season 4
Episode :	Paradise Lost