Lauren Cohan, Mark O'Brien, and Mia Tomlinson Join Prime Video's 'Stillwater'

• Lauren Cohan, Mark O'Brien, and Mia Tomlinson have joined Prime Video's 'Stillwater' as series regulars.
• The series is an adaptation of the Skybound graphic novel by Chip Zdarsky and Ramón K Pérez.
• Lauren Cohan will play Catherine 'Cat' Keegan, a former homecoming queen with a fierce edge.
• Mark O'Brien and Mia Tomlinson's roles are not specified in the source material.
• The series is produced by Warner Bros. Television, Berlanti Productions, and Skybound Entertainment.