Star Trek: Lower Decks (TV) Cast
The cast of Star Trek: Lower Decks. Updated on August 15, 2025.
115 actors
Tawny Newsome
as Ensign Beckett Mariner (voice) (40 episodes)

Voice of Ensign Beckett Mariner, an irreverent and independent-minded crew member.

Jack Quaid
as Ensign Brad Boimler (voice) (40 episodes)

Voice of Ensign Brad Boimler, known for his rule-abiding nature and ambition.

Noël Wells
as Ensign D'Vana Tendi (voice) (40 episodes)

Voice of Ensign D'Vana Tendi, an optimistic and enthusiastic medical officer.

Eugene Cordero
as Ensign Sam Rutherford (voice) (40 episodes)

Voice of Ensign Sam Rutherford, a skilled engineer dealing with a cybernetic implant.

Dawnn Lewis
as Captain Carol Freeman (voice) (40 episodes)

Voice of Captain Carol Freeman, the dedicated captain of the USS Cerritos.

Gillian Vigman
as Doctor T’Ana (voice) (40 episodes)

Voice of Doctor T’Ana, a no-nonsense Caitian doctor with a gruff manner.

Jerry O'Connell
as Commander Jack Ransom (voice) (40 episodes)

Voice of Commander Jack Ransom, the bold and charismatic first officer.

Fred Tatasciore
as Lieutenant Shaxs (voice) (40 episodes)

Voice of Lieutenant Shaxs, a fierce Bajoran security officer.

Jess Harnell
as K'orin (voice) (1 episode)

Voice of K'orin, a rowdy and drunken Klingon character.

Kevin Michael Richardson
as (voice) (1 episode)
Haley Joel Osment
as Lt. O'Connor (voice) (1 episode)

Voice of Lt. O'Connor, a character with a unique spiritual perspective.

Matt Walsh
as Lieutenant Commander Ron Docent (voice) (1 episode)

Voice of Lieutenant Commander Ron Docent, involved in administrative duties.

Tim Robinson
as Ensign Fletcher (voice) (1 episode)
Jennifer Hale
as Lieutenant Durga / The Dog (voice) (1 episode)
Maurice LaMarche
as Lieutenant Drew Prachett (voice) (1 episode)
John de Lancie
as Q (voice) (1 episode)
Kurtwood Smith
as (voice) (1 episode)
Kenneth Mitchell
as Black Ops Officer 2 / Romulan Guard 1 / Tweerk Captain (voice) (1 episode)
Brandon Johnson
as (voice) (1 episode)
Gary Cole
as Leonardo da Vinci (voice) (1 episode)
Marina Sirtis
as Cmdr. Deanna Troi (voice) (1 episode)
Echo Kellum
as (voice) (1 episode)
Randall Park
as Apergosian High Leader (voice) (1 episode)
Missi Pyle
as Interrogator (voice) (1 episode)
Ryan Ridley
as Injured Bajoran Crewmember (voice) (1 episode)
Ryan Stanger
as Titan's Tactical Officer (voice) (1 episode)
J.G. Hertzler
as Drookmani Captain (voice) (2 episodes)
Rich Fulcher
as Pakled Captain (voice) (1 episode)
Marcus Henderson
as Lieutenant Jet (voice) (4 episodes)
Tom Kenny
as Quimp (voice) (2 episodes)
Lauren Tom
as (voice) (2 episodes)
Anthony Atamanuik
as Honus (voice) (1 episode)
Robert Gilbert
as Patingi (voice) (1 episode)
June Diane Raphael
as Queen Billups (voice) (1 episode)
Richard Kind
as Doopler (voice) (1 episode)
Jenifer Lewis
as Bartender (voice) (1 episode)
Brian Posehn
as Queen Pakled / Out-of-Breath Pakled / Pakled Delegate 2 (voice) (1 episode)
Ben Rodgers
as Lieutenant Commander Stevens (voice) (5 episodes)
Jessica McKenna
as Barnes (voice) (9 episodes)
Robin Atkin Downes
as Older Klingon Officer / Togg (voice) (1 episode)
Joy Brunson
as Shara (voice) (1 episode)
Colton Dunn
as Captain Dorg (voice) (1 episode)
Merrin Dungey
as Wendy (voice) (1 episode)
Sam Richardson
as Vendome (voice) (1 episode)
Jessica Lowe
as T'gai / Hawaiian'er (voice) (1 episode)
Al Rodrigo
as (voice) (1 episode)
Neil Casey
as (voice) (2 episodes)
Michelle Wong
as Wong (voice) (1 episode)
Toks Olagundoye
as Amina Ramsey (voice) (1 episode)
Marc Evan Jackson
as Vendome (voice) (1 episode)
Sean Walton
as G'reck (voice) (1 episode)
Alice Krige
as Borg Queen (voice) (1 episode)
Nolan North
as B'Rt Tendi (voice) (7 episodes)
Lennon Parham
as Shari Yen Yem / Computer (voice) (1 episode)
Carl Tart
as Kayshon (voice) (10 episodes)
Lycia Naff
as Capt. Sonya Gomez (voice) (1 episode)
Phil LaMarr
as Alonzo Freeman (voice) (3 episodes)
Vanessa Marshall
as Lieutenant Ottessa Warren (voice) (2 episodes)
Jonathan Frakes
as Capt. William T. Riker (voice) (3 episodes)
Jim Piddock
as Commander Mandel (voice) (1 episode)
Kether Donohue
as Peanut Hamper (voice) (2 episodes)
James Cromwell
as Dr. Zefram Cochrane (voice) (1 episode)
Bobby Moynihan
as Gavin (voice) (1 episode)
Paul F. Tompkins
as Migleemo (voice) (6 episodes)
Jeffrey Combs
as AGIMUS (voice) (2 episodes)
Eric Bauza
as Coqqor (voice) (3 episodes)
Jack McBrayer
as Badgey (voice) (2 episodes)
Susan Gibney
as Dr. Leah Brahms (voice) (1 episode)
Carlos Alazraqui
as Les Buenamigo (voice) (4 episodes)
Paul Scheer
as Lieutenant Commander Andy Billups (voice) (10 episodes)
Gabrielle Ruiz
as T'Lyn (voice) (6 episodes)
Jon Curry
as Ma'ah (voice) (2 episodes)
Georgia King
as Petra Aberdeen (voice) (3 episodes)
Armin Shimerman
as Quark (voice) (1 episode)
Robert Duncan McNeill
as Nick Locarno (voice) (2 episodes)
Nana Visitor
as Col. Kira Nerys (voice) (1 episode)
Lauren Lapkus
as Jennifer Sh'reyan (voice) (9 episodes)
Kari Wahlgren
as Anabaj (voice) (3 episodes)
Gil Ozeri
as Ferengi Pit Boss (voice) (1 episode)
Adam Pally
as Mesk (voice) (1 episode)
Tien Tran
as Anya (voice) (1 episode)
Harry Shum Jr.
as Rawda (voice) (1 episode)
Baron Vaughn
as Captain Maier (voice) (1 episode)
Mary Holland
as Helena Gibson (voice) (1 episode)
George Takei
as Cpt. Hikaru Sulu (voice) (1 episode)
Asif Ali
as Ensign Asif (voice) (2 episodes)
Seth Morris
as Illustor (voice) (1 episode)
Leonardo Nam
as Australian Street Punk (voice) (1 episode)
Artemis Pebdani
as Ensign Karavitus (voice) (2 episodes)
Charlotte Nicdao
as Meredith (voice) (1 episode)
Alice Wetterlund
as Melponar Triplets (voice) (1 episode)
Alison Becker
as Victoria Nuzé (voice) (1 episode)
Sean Clements
as B'Nir (voice) (1 episode)
Troy Baker
as (voice) (1 episode)
Kevin Dorff
as Starbase 80 officer 1 (voice) (1 episode)
James Sie
as Doctor Chaotica / G'reck (voice) (1 episode)
Andy Richter
as Beljo Tweekle (voice) (1 episode)
Carl Clemons-Hopkins
as Narj (voice) (1 episode)
Roan K. Lai
as Moopsy (voice) (1 episode)
Chris Perfetti
as Gary (voice) (1 episode)
For the best insights and data about the TV show Star Trek: Lower Decks, visit our main Star Trek: Lower Decks page.