List of Star Trek characters (A–F)

This entry provides a list of notable characters from the Star Trek franchise whose names begin with the letters A through F. This list encompasses characters from all live-action and animated Star Trek series and films, and may include recurring characters or those who have made significant contributions to the Star Trek universe. The list is not exhaustive but aims to include individuals generally recognized and remembered by Star Trek fans.

• Adonis: An extremely powerful being encountered by the USS Enterprise in the original series episode "Who Mourns for Adonais?".

• Admiral Cartwright: A Starfleet admiral known for his conservative views and opposition to peaceful relations with the Klingons. He is featured in Star Trek VI: The Undiscovered Country.

• Admiral Dougherty: A corrupt Starfleet admiral who conspires with the Son'a to displace the Ba'ku people in Star Trek: Insurrection.

• Admiral Forrest: A Starfleet admiral who played a key role in the early days of Earth's exploration of space and the development of the United Federation of Planets, appearing in Star Trek: Enterprise.

• Admiral Janeway (Kathryn): The future version of Captain Kathryn Janeway, who travels back in time to help her younger self defeat the Borg in Star Trek: Voyager.

• Admiral Marcus: A Starfleet admiral who acts as the main antagonist in Star Trek Into Darkness.

• Admiral Nechayev: A stern and demanding Starfleet admiral who frequently interacts with Captain Picard and other officers, primarily in Star Trek: The Next Generation.

• Admiral Ross: A Starfleet admiral who oversees Deep Space Nine during the Dominion War.

• Airiam: A human with cybernetic implants who served as a bridge officer aboard the USS Discovery in Star Trek: Discovery.

• Akorem Laan: A Bajoran religious figure who claims to be the Emissary of the Prophets instead of Benjamin Sisko in Star Trek: Deep Space Nine.

• Alexander Rozhenko: The half-Klingon son of Worf and K'Ehleyr. He appears in Star Trek: The Next Generation and Star Trek: Deep Space Nine.

• Amanda Grayson: Spock's human mother and Sarek's wife. She is portrayed in several Star Trek iterations.

• Arex: A Edosian navigator on the USS Enterprise in Star Trek: The Animated Series.

• Arne Darvin: A Klingon surgically altered to appear human, who attempts to sabotage the Federation-Klingon relationship in the original series episode "The Trouble with Tribbles."

• B'Elanna Torres: The half-Klingon, half-human Chief Engineer of the USS Voyager.

• Benjamin Sisko: The Starfleet officer in command of Deep Space Nine and the Emissary of the Bajoran Prophets.

• Beverly Crusher: The Chief Medical Officer aboard the USS Enterprise-D in Star Trek: The Next Generation.

• Boothby: The head groundskeeper at Starfleet Academy, known for his wisdom and advice to cadets.

• Charles Tucker III (Trip): The Chief Engineer of the Enterprise NX-01 in Star Trek: Enterprise.

• Chakotay: The first officer of the USS Voyager.

• Christine Chapel: A nurse aboard the USS Enterprise in the original series.

• Data: An android serving as the Operations Officer and Second Officer aboard the USS Enterprise-D in Star Trek: The Next Generation.

• Deanna Troi: The ship's counselor aboard the USS Enterprise-D in Star Trek: The Next Generation.

• Denise Crosby (Tasha Yar): Security Chief of the USS Enterprise-D during the first season of Star Trek: The Next Generation.

• Elim Garak: A Cardassian tailor and former spy, known for his ambiguous morality and crucial role in the Dominion War on Star Trek: Deep Space Nine.

• Elizabeth Shelby: An expert on the Borg who briefly serves on the USS Enterprise-D.

• Ensign Chekov (Pavel): The Russian-born navigator and security officer on the USS Enterprise in the original series.

• Ezri Dax: A Trill Starfleet officer who becomes the host of the Dax symbiont in the final season of Star Trek: Deep Space Nine.

• Fenris Ranger: A vigilante who lives in the post-apocalyptic world of Freecloud (from Star Trek: Picard).