Guest Stars Alex Eastwood as Luke Eve Prenelle as Ava Alun Armstrong as Jim Joanna Bacon as Jackie Stella Gonet as Leah Co Starring Patrick Baladi as Darren Aliyah Sesay as Grace Hugh Quarshie as Alex Jordan Nash as Jacob Bruno Ben-Tovim as Isaac Sally Phillips as Gabby Isabel Rose Stewart as Ruby Jeremiah Daley as Kai Theo Collis as Ben Akie Kotabe as Waiter Austeja Neringa as Mia James Millard as Party Guy