Mark Allen Shepherd (born January 7, 1961) is an actor, best known for his role as Morn on Star Trek: Deep Space Nine. He also appeared in two episodes of Star Trek: The Next Generation and Star Trek: Voyager, even though his name is never in the credits.
Shepherd received a Bachelor of Science degree in biology from Roger Williams University in Rhode Island. After graduation, he moved to Southern California and studied at the California Institute of the Arts, focusing on music, film, theater, performance, and interdisciplinary arts.
Shepherd is an artist and has created numerous abstract impressionist paintings, mixing media types into photomosaics. Twenty-three of his works have been used as set dressing on Star Trek: Deep Space Nine.
Shepherd is also a member of Plural Dolt, an absurd music theater group based in Los Angeles.