American character actor who played Crewman Simon Tarses, the frightened medical technician accused during Admiral Satie's inquiry, in the Next Generation episode The Drumhead.
Spencer Garrett is an American character actor with a long list of film and television credits, often as politicians, lawyers and executives.
In The Drumhead he plays Simon Tarses, a young medical technician aboard the Enterprise-D who is questioned about a suspected act of sabotage. Tarses had nothing to do with it, but Admiral Satie's Betazoid aide senses that he is hiding something: he claimed a Vulcan grandfather on his Starfleet application when the man was in fact Romulan.
Garrett's nervous, decent Tarses becomes the test case of the hearings, and Picard's defence of him turns the inquiry against Satie.