Multiple realities
(covers information from several alternate timelines)
For the New Frontier novel, please see Treason (novel).
"Treason, like beauty, is in the eye of the beholder."

Treason was the act of betraying one's country, organization, affiliation, or ally, usually to assist the enemy. One who committed this act was known as a traitor, and might be convicted as a criminal. Sometimes, a traitor was influenced by the enemy to commit such acts due to political or situational circumstances.

Use of the termEdit

Treason was one of the very few crimes punishable by death on Vulcan in the 22nd century. (ENT: "Kir'Shara")

Various Starfleet-related acts of treason and traitors have been uncovered throughout history.

In 2365, Worf told Geordi La Forge, who was being held captive by Pakleds, that it would be treasonous to give them classified tactical information. This was part of a ruse to rescue La Forge by making the Pakleds believe he was a weapons expert. (TNG: "Samaritan Snare")

In 2370, Data told William T. Riker that he could not give orders because of the charges he faced upon his return from Arctus Baran's ship, having been declared a renegade. Treason was one of the charges he mentioned. (TNG: "Gambit, Part II")

Tom Paris was convicted of treason for his activities with the Maquis and sentenced to eighteen months' imprisonment at the Federation Penal Settlement in New Zealand. (VOY: "Non Sequitur")

Jack, Lauren, Patrick and Sarina almost committed treason in 2374, by trying to give Weyoun and Damar Starfleet battle plans and fleet deployments. (DS9: "Statistical Probabilities")

The Female Changeling was determined that Damar "pay a price" for his treason against the Dominion. She ordered Weyoun to find Damar's wife and children. (DS9: "Tacking Into the Wind")

General Martok considered it treasonous to challenge Chancellor Gowron's leadership of the Klingon Empire in the middle of the Dominion War. (DS9: "Tacking Into the Wind")

Captain Braxton accused Captain Kathryn Janeway and Commander Chakotay of being traitors after they denied his story of being from the future to police officer Sims. (VOY: "Future's End")

In 2259 of the alternate reality, Montgomery Scott asked Captain James T. Kirk to beam him off the USS Vengeance, noting that he had committed treason against Admiral Alexander Marcus by sabotaging the ship. (Star Trek Into Darkness)

Known acts of treasonEdit

Khitomer conspiracyEdit

See: Khitomer conspiracy

Klingon Civil WarEdit

See: Klingon Civil War

Known traitors to StarfleetEdit

Cartwright, 2293

Admiral Cartwright in 2293

Admiral CartwrightEdit

Admiral Cartwright was a high ranking Starfleet official in the late 23rd century. Cartwright was part of the Khitomer conspiracy that arranged the assassination of Klingon chancellor Gorkon as he traveled to negotiate with the Federation President on Earth in 2293. He was ultimately arrested for his involvement with the conspiracy. (Star Trek VI: The Undiscovered Country)


Valeris was a Vulcan Starfleet officer who served aboard the USS Enterprise-A as Conn Officer in 2293. She played a major role in the Khitomer conspiracy aboard the Enterprise-A. Valeris was taken into custody and later charged with treason. (Star Trek VI: The Undiscovered Country)

Calvin HudsonEdit

Cal hudson

Calvin Hudson in 2370

Lieutenant Commander Calvin "Cal" Hudson was attache to the Federation colonies in the Demilitarized Zone. After years of seeing the suffering and abuse of the colonists by the Cardassians, he joined the Maquis, but was uncovered by Sisko. (DS9: "The Maquis, Part I", "The Maquis, Part II") He was killed in a skirmish with the Cardassians after they allied with the Jem'Hadar in 2373. (DS9: "Blaze of Glory")

Stefan DeSeveEdit

Stefan DeSeve

Stefan DeSeve in 2369

Stefan DeSeve was a Starfleet Ensign who had defected to the Romulan Star Empire in 2349. In 2369 he returned to the Federation to face treason charges and, more importantly, to deliver a message from Spock about the Romulan underground movement. (TNG: "Face of the Enemy")

Ro LarenEdit

Ro maquis

Ro Laren in 2370

Ro Laren was a Bajoran national who formerly served in Starfleet aboard the Federation starship USS Enterprise-D before finally sympathizing with, and later joining, the Maquis. Her fate remains unknown. (TNG: "Preemptive Strike")

Michael JonasEdit

Michael Jonas was a former member of the Maquis, who subsequently joined the crew of the USS Voyager after being stranded in the Delta Quadrant. He secretly conspired with Seska, a Cardassian spy who defected to the Kazon-Nistrim, and ultimately tried to sabotage Voyager. Jonas was killed as he fell into a plasma fire, near Voyager's warp core. (VOY: "Investigations")

Michael EddingtonEdit


Michael Eddington in 2371

Michael Eddington was a Starfleet security officer assigned to space station Deep Space 9 during the late 24th century. Eddington became disillusioned with Starfleet and the Federation, and joined the Maquis.

He was captured by his former commander, Benjamin Sisko, in mid-2373. Eddington was killed during a special operation while serving his sentence. He and Sisko were able to save several Maquis members from being killed, including his wife, Rebecca Sullivan. (DS9: "For the Cause", "For the Uniform", "Blaze of Glory")

Other traitorsEdit

Cretak, Inter arma enim silent leges

Kimara Cretak learns of her charge of treason

Further referencesEdit

External linkEdit