Wikimedia Commons/FBI CBS TV Show TV Missy Peregrym returns as FBI's Maggie Bell. See her emotional comeback as she discusses grief, recovery, and her official return to duty. March 31, 2026 AceShowbiz - FBI star Missy Peregrym made a notable return to the show following her character Maggie Bell's leave of absence due to a significant personal loss. The character's comeback was featured in the episode airing Monday, March 30, where she candidly discussed her grief and recovery process with fellow agent Isobel, portrayed by Alana de la Garza.