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Memory Beta, non-canon Star Trek Wiki
Memory Beta, non-canon Star Trek Wiki
This page details Elizabeth Dehner in the primary universe; for the Elizabeth Dehner in the mirror universe see Elizabeth Dehner (mirror); for the Elizabeth Dehner in the Kelvin timeline created by Nero's temporal incursion, see Elizabeth Dehner (Kelvin timeline); for the Elizabeth Dehner in the mirror universe created by Nero's temporal incursion see Elizabeth Dehner (mirror) (Kelvin timeline); for the Elizabeth Dehner in all other alternate universes see Elizabeth Dehner (alternates).

Doctor Elizabeth Dehner was a Starfleet psychiatrist who served aboard the USS Enterprise in the mid-2260s.


Elizabeth Dehner, the daughter of Gerald Dehner, was born in Delman, Newstate on stardate 1089.5. (TOS episode: "Where No Man Has Gone Before". TOS comic: "Who's Who in Star Trek, Issue 1")

She wrote her thesis based on herself regarding her Duke-Heidelburg Quotient and Esper abilities. This helped earn her degree in psychiatry. Dehner then worked on postgraduate studies at the Vega IV Institute, showing that some natives had esper abilities such as telekinesis, pyrokinesis and could change the weather with their minds. (TOS comic: "Who's Who in Star Trek, Issue 1")

By 2264, Dehner was in residence at the Federation colony on Aldebaran III. In early 2265, Dehner accepted a posting to the USS Enterprise, under the command of Captain James T. Kirk, for a long-term study of the affect of space duty on the human psyche (particularly in crisis situations), using the Enterprise crew as an example. (TOS novel: Strangers from the Sky, TOS comic: "Who's Who in Star Trek, Issue 1")

However, a few months after Dehner's posting to the Enterprise, the ship was ordered to patrol beyond the galactic barrier to rescue a message buoy from the SS Valiant. While breaching the barrier, Dehner and 10 other officers were effected by a strange phenomena, but only Dehner and Lieutenant Commander Gary Mitchell survived. While Dehner seemed initially unaffected by the field, Mitchell began to exhibit god-like abilities, which was discovered to be linked to the ESP ratings of the crew, with Mitchell and Dehner having the highest ratings. With Mitchell becoming more powerful and placing the Enterprise at risk, Captain Kirk decided to abandon him on Delta Vega.

While on Delta Vega, Dehner began to exhibit the same powers and freed Mitchell so they could both rule the planet. However, Captain Kirk was able to appeal to her sense of duty, and Dehner attacked Mitchell and drained his powers so Kirk could kill him. In doing this, she sacrificed her life and died on Delta Vega. (TOS episode & Star Trek 8 novelization: Where No Man Has Gone Before)

The avatar of the Totality, Norinda, briefly assumed Dr Dehner's form during an attempt to bring Captain Kirk into the Totality. (TOS novel: Captain's Glory)


USS Enterprise (NCC-1701) medical personnel
under Charles Rasmussen & Robert April S. Poole-AprilP. Boyce under Christopher Pike P. BoyceG. CarlottiCastelanoYang Starfleet emblem. USS Enterprise medical assignment insignia.
under James T. Kirk
(first five-year mission)
R. AbramsP. AielloM. AndrusTaurusBrennanC. BrentP. CarmenC. ChapelConnorsE. Cortejo AlvarezDarrellE. DehnerA. DickinsonElayneA. EricksonA. FerraraHarrisonHinchC. IversR. LeslieL. MayerJ. M'BengaL.H. McCoyMichaelsH. NoelPetersonS. PetersonPiersonM. PiperR. RigelSanchezSoongK. Tracy
subsequent missions under Kirk & Spock AmekentraL. BurkeC. ChapelDuaneGuindonT. KrejciLiftigL.H. McCoyN. MoktarRixilH. TanzerWeinstein UFP emblem. USS Enterprise medical assignment insignia.
see also: administrative personnelcommunications personnelengineering personnelpilots & flight control personnelsecurity & tactical personnelsciences personnelsenior staff • unnamed (2240s and 2250s2260s2270s and 2280s)

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