McMahon, known for his starring roles in Nip/Tuck, Charmed, FBI: Most Wanted and the 2000s Fantastic Four movies, died from lung metastasis as a result of head and neck metastatic cancer, according to a Cremation Approval Summary Report from the Pinellas County Medical Examiner’s Office in Florida, obtained by People.

Q stars as Detective Renée Ballard on the upcoming Prime Video series, which serves as a spinoff of police procedural Bosch and its follow-up series Bosch: Legacy. After her appearance in the Season 3 finale of Bosch: Legacy, Ballard will follow Renée as she heads the LAPD’s underfunded cold case division.