Lauren Cohan, Mark O'Brien, Mia Tomlinson Join Prime Video's Stillwater
The three actors board the Skybound graphic novel adaptation as series regulars, joining lead Ben Hardy.
Lauren Cohan, Mark O'Brien and Mia Tomlinson have been cast as series regulars in Prime Video's Stillwater, according to Deadline. The three join lead Ben Hardy in the adaptation of the Skybound graphic novel.
Cohan will play Catherine 'Cat' Keegan, O'Brien will play Ted Keegan, and Tomlinson will play Laura Quinn.
Stillwater adapts the graphic novel by Chip Zdarsky and Ramón K Pérez. Greg Berlanti and Carly Wray executive produce and co-wrote the pilot.
The eight-episode series was ordered in July 2026, ahead of San Diego Comic-Con.
Background
Cohan is known for playing Maggie Greene on AMC's The Walking Dead and its spin-off The Walking Dead: Dead City. O'Brien was most recently seen in Peacock's The Copenhagen Test and the WWII drama Nuremberg. Tomlinson played Judy in Warner Bros.' The Conjuring: Last Rites.
Quick answers
Who has been cast in Prime Video's Stillwater?
Lauren Cohan, Mark O'Brien and Mia Tomlinson have joined as series regulars, alongside lead Ben Hardy.
What characters will Lauren Cohan, Mark O'Brien and Mia Tomlinson play?
Cohan plays Catherine 'Cat' Keegan, O'Brien plays Ted Keegan, and Tomlinson plays Laura Quinn.
What is Stillwater based on?
It adapts the Skybound graphic novel by Chip Zdarsky and Ramón K Pérez.