The Expanse (TV) Cast
The cast of The Expanse. Updated on September 16, 2025.
396 actors
Steven Strait
as Jim Holden (62 episodes)

Steven Strait portrays Jim Holden, the captain of the Rocinante and a former member of the United Nations Navy. Holden becomes embroiled in interplanetary conflicts as he uncovers a conspiracy that could change the course of humanity.

Dominique Tipper
as Naomi Nagata (62 episodes)

Dominique Tipper plays Naomi Nagata, the Rocinante's engineer and second-in-command. Naomi is resourceful and skilled, often finding solutions to complex problems when the crew faces challenges.

Cas Anvar
as Alex Kamal (56 episodes)

Cas Anvar portrays Alex Kamal, the Rocinante's pilot and an expert in Martian military tactics. Alex is a talented and dedicated crew member, juggling his responsibilities and loyalty to his team.

Wes Chatham
as Amos Burton (62 episodes)

Wes Chatham plays Amos Burton, the Rocinante's mechanic and enforcer. Amos is a complex character with a troubled past, bringing a sense of loyalty and ruthlessness to the crew.

Shohreh Aghdashloo
as Chrisjen Avasarala (62 episodes)

Shohreh Aghdashloo portrays Chrisjen Avasarala, a United Nations executive with a strong political presence. Avasarala is dedicated to maintaining peace and order but is willing to take drastic measures when necessary.

Frankie Adams
as Roberta 'Bobbie' W. Draper (52 episodes)

Frankie Adams plays Roberta 'Bobbie' W. Draper, a Martian Marine and later a member of the Rocinante crew. Bobbie is a fierce soldier who becomes entangled in interplanetary conflicts and plays a key role in uncovering hidden truths.

Shawn Doyle
as Sadavir Errinwright (34 episodes)

Shawn Doyle portrays Sadavir Errinwright, a high-ranking official in Earth's government. Errinwright is a cunning and manipulative character who plays a crucial role in shaping political decisions and agendas.

Florence Faivre
as Julie Mao (24 episodes)

Florence Faivre plays Julie Mao, a wealthy heiress who becomes involved in a mysterious conspiracy. Julie's disappearance sets off a chain of events that lead to the discovery of a dangerous alien technology.

Cara Gee
as Camina Drummer (42 episodes)
Thomas Jane
as Detective Josephus Miller (23 episodes)
Keon Alexander
as Marco Inaros (18 episodes)
John Chou
as NSA Analyst (1 episode)
Jonathan Banks
as Executive Officer (1 episode)
Sam Huntington
as Solomon Epstein (1 episode)
Kristen Hager
as Ade Nygaard (2 episodes)
Alain Chanoine
as Ranhofer (1 episode)
Kelly McCormack
as Loftis (1 episode)
Joe Pingue
as Captain McDowell (1 episode)
Julian Richings
as Vargas (1 episode)
Adrian Nguyen
as Riker (1 episode)
Carson Durven
as Little Girl's Father (1 episode)
Cody Schindermann
as Interrogator #1 (1 episode)
Kevin Alves
as Deck Cadet (1 episode)
Krista Morin
as Rebecca Byers (1 episode)
Ronnie Rowe
as Cameron Paj (1 episode)
Russell Yuen
as Interrogator #2 (1 episode)
Matia Jackett
as Young Belter Girl (1 episode)
Bauston Camilleri
as Street Kid #4 (1 episode)
Christian Bako
as Belter Commuter #1 (1 episode)
Ese Beaudoin-Borha
as AWP Worker (1 episode)
Ian Agard
as Belter Commuter #2 (1 episode)
Patrick Stevenson
as Dock Master (1 episode)
Spencer Birman
as Street Kid #3 (1 episode)
Steve Moxley
as Bike Trick Kid (1 episode)
Kenneth Welsh
as Franklin Degraaf (1 episode)
Bernadette Couture
as Belter Marcher #1 (1 episode)
Brian J. Graham
as Angry Dockworker (1 episode)
Christopher Weedon
as Young Dockworker #1 (1 episode)
Daniel Krantz
as Mormon Missionary (1 episode)
Dave Lewis
as Star Helix #2 (1 episode)
Nadine Nicole
as Clarissa Mao (16 episodes)
E. Nova Zatzman
as Belter Bystander #1 (1 episode)
Goran Stjepanovic
as Menacing Belter #2 (1 episode)
Ivan Wanis-Ruiz
as Martian Crewman (1 episode)
James Binkley
as Belter Shopkeeper (1 episode)
Jeffrey Weedon
as Young Dockworker #2 (1 episode)
Jung-Yul Kim
as Menacing Belter #1 (1 episode)
Marco Bianco
as Star Helix #1 (1 episode)
Jack Birman
as Street Kid #2 (1 episode)
Moses Nyarko
as Muscle Dockworker (1 episode)
Wayne Downer
as Belter Bystander #2 (1 episode)
Yatharth Bhatt
as Avasarala's Grandson #1 (2 episodes)
Austin Strugnell
as Sensor / Comms Officer (2 episodes)
Boyd Banks
as Coroner (1 episode)
Jane Moffat
as Brothel Madam (4 episodes)
Brett Ryan
as Cpl. Mole (2 episodes)
Diana Bentley
as Sergent Grimes (2 episodes)
Jean Yoon
as Captain Theresa Yao (2 episodes)
Jordan Van Dyck
as Cpl. Dookie (2 episodes)
Marvin Kaye
as Gambler (1 episode)
Sean Arnfinson
as Boarder (1 episode)
Tattiawna Jones
as Weapons Officer (2 episodes)
Tina Jung
as Wasted Girl (1 episode)
Jay Hernandez
as Dimitri Havelock (5 episodes)
Alex Spencer
as Belter Commuter #1 (1 episode)
Billy MacLellan
as Marama Brown (1 episode)
Duane Murray
as Gero (1 episode)
Jamillah Ross
as Belter Woman (1 episode)
Michael Murray
as Detective Cobb (3 episodes)
Robin Kasyanov
as Belter Man (1 episode)
Samantha Madely
as Belter Commuter #2 (1 episode)
Ryan Stanley
as Great Dane (3 episodes)
Felicia Simone
as Thug girl Lida (1 episode)
Raven Stewart
as Hinekiri Brown (1 episode)
Lola Glaudini
as Captain Shaddid (5 episodes)
Greg Bryk
as Lopez (4 episodes)
Tig Fong
as Thug #2 Kaipo (2 episodes)
Alex Karzis
as Mateo (1 episode)
Caleb Olivieri
as Hustler (1 episode)
Phillip Samuel
as Bug Eyes (1 episode)
Rossif Sutherland
as Neville Bosch (2 episodes)
Athena Karkanis
as Octavia Muss (7 episodes)
Kyle Gatehouse
as Gaunt Belter (3 episodes)
Jasai Chase-Owens
as Filip (11 episodes)
Markus Parilo
as Thierry (2 episodes)
Jeffrey Snape
as Father Tom (1 episode)
Alli Chung
as Sam Rosenberg (1 episode)
Nick Alachiotis
as Blue Falcon Clerk (1 episode)
Kevin Bundy
as Mormon (1 episode)
Drew Carrymore
as Background (3 episodes)
Mike Chute
as Goth Assassin #2 (1 episode)
Craig Henry
as Bouillotte Dealer (2 episodes)
Ted Ludzik
as Pock Mark (2 episodes)
Anthony Gerbrandt
as Rock Hopper (1 episode)
Simon Girard
as Thin Man Assassin (1 episode)
Phillip MacKenzie
as Eros Dock Master (1 episode)
Larissa Stadnichuk
as Prostitute Assassin (1 episode)
Chris Wilson
as Crying Business Man (1 episode)
Ric Garcia
as Street Dealer (1 episode)
Anthony Grant
as Wan (1 episode)
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