Guest Stars Georgina Campbell as Young Serena Nicholas Pinnock as Evan Sara Powell as Fez Martin Compston as Marcus Michael McElhatton as Brian Kathy Kiera Clarke as Marlene Holli Dempsey as Young Poppy Bryan Dick as Al Eleanor Methven as Liz Owen Roe as Jim Doña Croll as Rachel Dylan Tighe as Poppy's Lawyer Laura Jane Laughlin as Serena's Lawyer Dominique Jackson as Vee