Guest Stars Nico Mirallegro as Teenage Tom Olivia Colman as Nancy Shaun Dooley as Mike Eldridge Claire Goose as Mandy Daryl Fishwick as Wendy Timothy West as Metzler Sarah Dunn as Metzler's PA Alex Clayton as Young Tom Sarah Parks as Wendy's Partner Ned Dennehy as Ricky Denise Black as Belinda