Derek Frost is the nihilistic domestic terrorist responsible for the train bombing and the planned second attack in Chicago. Colter identifies him through a fallen wallet, traces his vehicle, and discovers a dirty bomb hidden inside his van. Frost shoots Colter and Christina in one timeline, but information from the investigation enables authorities to arrest him.
Liv's assistant tasked with swapping a pranked video at Emma's ceremony for the original emotional one. He mistakenly believes the request is a prank and fails to make the switch, triggering the final wedding confrontation.
Michael Arden has 26 screen credits in a career dating back to 2005. Signature works include Anger Management, Source Code, Bride Wars. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
