Halt and Catch Fire (TV) Cast
The cast of Halt and Catch Fire. Updated on September 21, 2025.
51 actors
Lee Pace
as Joe MacMillan (40 episodes)

Lee Pace portrays Joe MacMillan, a charismatic and ambitious former IBM employee who becomes a central figure in the personal computer revolution. Joe is known for his visionary ideas and relentless pursuit of success.

Scoot McNairy
as Gordon Clark (40 episodes)

Scoot McNairy portrays Gordon Clark, a brilliant and talented engineer with a turbulent personal life. Gordon is initially skeptical of Joe's grand plans but eventually becomes integral to their realization.

Mackenzie Davis
as Cameron Howe (40 episodes)

Mackenzie Davis portrays Cameron Howe, a brilliant and rebellious computer programmer. Cameron's unconventional ideas and fierce determination make her a vital part of the team, but her turbulent personality often clashes with her colleagues.

Kerry Bishé
as Donna Clark (40 episodes)

Kerry Bishé portrays Donna Clark, a smart and resourceful engineer who is married to Gordon. Donna proves to be a crucial member of the team, employing her problem-solving skills and business acumen to navigate the challenges of the industry.

Toby Huss
as John 'Bos' Bosworth (40 episodes)

Toby Huss portrays John 'Bos' Bosworth, a seasoned and experienced executive who joins the team as it grows. Bosworth provides valuable guidance and mentorship to the younger members of the group, drawing from his extensive industry knowledge.

Aleksa Palladino
as Sara Wheeler (10 episodes)

Aleksa Palladino portrays Sara Wheeler, a journalist who becomes involved with the characters and their ventures. Sara's coverage of the personal computer revolution plays a significant role in shaping public perception and awareness of the industry.

Scott Michael Foster
as Hunt Whitmarsh (7 episodes)

Scott Michael Foster portrays Hunt Whitmarsh, a competitive and ambitious entrepreneur who becomes a rival to the main characters. Hunt's actions and business strategies often create tension and conflicts within the industry.

Will Greenberg
as Brian Braswell (5 episodes)

Will Greenberg portrays Brian Braswell, a talented programmer who joins the team along the way. Brian's technical skills and innovative thinking contribute to the group's success, but his interpersonal skills can sometimes be lacking.

Randy Havens
as Stan (9 episodes)
Alana Cavanaugh
as Haley Clark (19 episodes)
Graham Beckel
as Nathan Cardiff (7 episodes)
Mike Pniewski
as Barry Shields (5 episodes)
James Cromwell
as Jacob Wheeler (8 episodes)
Manish Dayal
as Ryan Ray (8 episodes)
Morgan Hinkleman
as Joanie Clark (18 episodes)
Mark O'Brien
as Tom Rendon (15 episodes)
Annabeth Gish
as Diane Gould (17 episodes)
Kathryn Newton
as Joanie Clark (10 episodes)
Matthew Lillard
as Ken Diebold (4 episodes)
Chelsea Talmadge
as Vera (6 episodes)
Brian R. Norris
as Elliot (6 episodes)
Sasha Morfaw
as Tanya Reese (6 episodes)
Cristian Gonzalez
as Cecil (6 episodes)
Anna Chlumsky
as Katie Herman (5 episodes)
David Wilson Barnes
as Dale Butler (3 episodes)
Molly Ephraim
as Alexa Vonn (5 episodes)
Kenny Alfonso
as Mike Houseman (1 episode)
Rich Ceraulo Ko
as Millennium Lead (1 episode)
Joshua Sawtell
as Millennium Team Member (1 episode)
Connor Hammond
as Dennis (1 episode)
T.C. Carter
as Vince (1 episode)
Jamie Miles
as Bonsai Enthusiast (1 episode)
Kristin Brock
as Dinner Party Guest (1 episode)
Alano Miller
as Gavin Green (2 episodes)
Charlie Bodin
as Trip Kisker III (1 episode)
Matthew Cornwell
as Shep (2 episodes)
Frank Hoyt Taylor
as Gilson (1 episode)
David Mackey
as Elias Amador (1 episode)
Brenton Schraff
as Calnect Engineer (1 episode)
Lily Donoghue
as Vanessa (1 episode)
Raven Wynn
as AGGE Receptionist (uncredited) (5 episodes)
Cooper Andrews
as Yo-Yo Engberk (1 episode)
Katie Parker
as Amy (1 episode)
Katy O'Brian
as Bartender (1 episode)
K.D. O'Hair
as Judie (2 episodes)
Brayden Benson
as Alf (1 episode)
Maggie Elizabeth Jones
as Joanie Clark (1 episode)
Lillian Ellen Jones
as Haley Clark (1 episode)
Susanna Skaggs
as Haley Clark (10 episodes)
Dan Johnson
as Kyle (1 episode)
Bryan Murphy
as Young Man (1 episode)
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