Mum season three begins on BBC Two tonight (Wednesday, May 15) at 10pm, with the characters heading on holiday together. Lesley Manville leads the cast of Mum as Cathy, a role which has seen her nominated for two BAFTAs. Peter Mullan, Lisa McGrillis and Dorothy Atkinson also star in the final series of Mum.
Cathy - Lesley Manville
Cathy is the eponymous ‘Mum’ of the series, who began the show grieving for her husband’s death and in the new season is starting a fresh relationship
Lesley Manville plays Cathy following on from work in numerous Mike Leigh films, Harlots and Phantom Thread, for which she was nominated for an Oscar.
Michael - Peter Mullan
Cathy’s new relationship is with Michael, her husband’s best friend with whom she has been having a will they/won’t they romance across the last two series.
Michael is portrayed by Peter Mullan, who has also been nominated for a BAFTA for Mum and is also the star of Ozark, Top of the Lake and Trainspotting.
Lesley Manville leads the cast of Mum on BBC Two (Image: BBC)
Jason - Sam Swainsbury
Jason is Cathy’s son, who is the slightly dim-witted but loving boyfriend of Kelly (played by Lisa McGrillis).
Sam Swainsbury, who stars as Jason, has also appeared in Fearless, Call the
