Sean Quinn is a fictional character portrayed by Brett O'Shaugnessy in the TV series Unforgotten.
They appear in 1 episodes out of a total of 30 aired so far
Episodes1
Episode #4.5
episode S4.E5 march 2021Cassie and Sunny interview two of the suspects again and get closer to the truth of what happened to Walsh. Balcombe believes she may have found the cause of death.