Hollyoaks is a British television soap opera that was first broadcast on 23 October 1995. The following is a list of characters that appeared in the serial in 2015, by order of first appearance. All characters were introduced by executive producer, Bryan Kirkwood.
The first character to be introduced was Dylan Jenkins (James Fletcher) – the estranged son of established character Trevor Royle (Greg Wood), who made his first appearance in early January. Shortly following, in late January, was the younger sister of Porsche (Twinnie Lee Moore) and Celine McQueen (Sarah George), Cleo (Nadine Mulkerrin). In February, the "Lovedays", a small new family, were introduced, with Simone Loveday (Jacqueline Boatswain) appearing first, followed by the rest of her family – son Zack (Duayne Boachie) and husband Louis (Karl Collins). April saw the arrivals of Reenie McQueen (Zöe Lucker), mother of Porsche, Celine and Cleo and younger half-sister of Myra (Nicole Barber-Lane); brothers Aiden (Joseph Cocklin) and Kyle Bigsby (Mitchell Hunt); Scott Drinkwell (Ross Adams), cousin of Sinead O'Connor (Stephanie Davis) and nephew of Diane O'Connor (Alex Fletcher); and the younger sister of Lindsey (Sophie Austin) and Kim Butterfield (Daisy Wood-Davis), Kath (Mikaela Newton). Cindy Cunningham's (Stephanie Waring) secret husband, Mac Nightingale (David Easter) and Jason Roscoe's (Alfie Browne-Sykes) police mentor, Ben Bradley (Ben Richards) began appearing from May. Dylan's mother, Val Jenkins (Tanya Robb), made her first appearance in June, as did Reenie's sexually abusive ex-boyfriend, Pete Buchanan (Kai Owen), and Sonia Albright (Kiza Deen), the woman pretending to be the missing daughter of Simone and Louis, Lisa.
Ben Bradley's drug-addicted daughter Carly Bradley (Sophie Wise) made her first appearance in July, as did Angela Brown (Adele Silva), her husband, Mark (Ben Faulks) and con artist Wayne (Nathan Whitfield). September saw the introductions of new villainess Ashley Davidson (Kierston Wareing), Derek Clough (Bruce Montague) – the abusive ex-partner of Nana McQueen (Diane Langton) and father of Porsche after raping Reenie, Jade Albright (Kassius Nelson), the sister of Sonia, and Joanne Cardsley (Rachel Leskovac), Louis' former mistress and Simone's former co-worker. October saw Ben's ex-wife, Sadie Bradley (Kirsty Mitchell) introduced and also saw Mac's family introduced as they take over the village pub The Dog in the Pond. The "Nightingales" include Mac's children, Nathan (Jared Garfield), Ellie (Sophie Porley) and Alfie (Richard Linnell); Mac's fiancée Neeta Kaur (Amrit Maghera); and Nathan's fiancée, Rachel Hardy (Jennifer Brooke). October also saw the arrival of new transgender Hollyoaks High headteacher, Sally St. Claire (Annie Wallace). In November, Diego Salvador Hernandez Martinez De La Cruz (Juan Pablo Yepez), Myra's toyboy lover, arrived in Hollyoaks, following her return to the village. In December, new doctor Dr. Berrington (Tupele Dorgu) made her first appearance.