Series 3
(2021)
Overview
Following on from the dramatic conclusion of the previous series, season 3 sees Marcella in Belfast as an undercover detective. She has taken on a new identity, Keira, and has infiltrated the infamous Maguire crime family but as she investigates their activities, questions come to the fore about how much she’s embraced the Keira personality and left Marcella behind.
Cast
as Marcella Backland
as Jason Backland
as DI Rav Sangha
as Sylvie Gibson
as Katherine Macguire
as DCI Laura Porter
as DI Tim Williamson
as Henry Gibson
as Peter Cullen
as Guy Roberts
as Maddy Stevenson
as DC Alex Dier
as DC Mark Travis
as Phil Maxwell
as Grace Gibson
as Adrien Cooper
as Stephen Holmes
as Matthew Neil
as Yann Hall
Episodes
Episode 1 5.6
January 26, 2021
Eighteen months later, Marcella has a new life as a deep undercover operative in Belfast, spying on a powerful family t…
Episode 2 5.6
January 26, 2021
Marcella is recognized on the street, and later finds an odd note on her windshield. When DCI Sangha arrives in Belfast…
Episode 3 7.3
February 2, 2021
Marcella receives an anonymous package. At Jessie's vigil, DCI Sangha spots an eerily familiar face. Finn finds out who…
Episode 4 7.3
February 9, 2021
The Maguires arrange for Bobby to leave the U.K., but the plan goes awry en route to the airport. Katherine sends a thr…
Episode 5 7.0
February 16, 2021
Her stalker's latest threat leaves Marcella suspicious of Frank. After recognizing one of Bobby's abductors in police r…
Episode 6 7.0
February 23, 2021
Marcella recalls how Frank rescued and reprogrammed her 18 months earlier. When Stacey flees from the Maguires with her…
Episode 7 7.0
March 2, 2021
Finn uses Rory's phobia to bully him into an alliance. Marcella confronts Frank with a discovery about his past. DCI Sa…
Episode 8 5.6
March 2, 2021
Marcella's latest blackout leaves her with an unexplained corpse. Wondering why DCI Sangha is still in Belfast, Jack de…