Christine Tremarco (born 1977) is an English actress. Her career began in 1992 when, at the age of 15, she starred in the miniseries The Leaving of Liverpool, for which she was nominated for an AACTA Award. Subsequent television work has included Waterloo Road (2007–2009), Casualty (2010–2013), Little Boy Blue (2017), Clink (2019), Wolfe (2021), and Emmerdale (2024).

For her portrayal of Manda Miller in Adolescence (2025), Tremarco won the British Academy Television Award for Best Supporting Actress, and was nominated for the Primetime Emmy Award for Outstanding Supporting Actress in a Limited or Anthology Series or Movie, Critics' Choice Award for Best Supporting Actress in a Limited Series or Movie Made for Television and Actor Award for Outstanding Performance by a Female Actor in a Miniseries or Television Movie.

Her film credits include Priest (1994), Under the Skin (1997), Face (1997), Anita and Me (2002), and Hector (2015).

Early life and acting debut Educated at St Cecilia's Catholic Infant and Junior Schools and then Holly Lodge Girls' College, Tremarco was invited to join a newly-opened dance and drama school after being spotted in a school play. Soon thereafter, having caught the attention of a casting agent while performing at a local drama group, she was offered a co-lead role in The Leaving of Liverpool (1993); a two-part television film depicting the forced migration of British children to Australia in the 1950s. For her portrayal of headstrong orphan Lily, Tremarco was nominated for the AACTA Award for Best Lead Actress in a Television Drama.

Career 1990s: Film roles and early work Following her feature film debut in Priest (1994), Tremarco appeared as Trish Freeman in two series of Springhill, a Liverpool-set soap opera created by Paul Abbott, between 1996 and 1997. She then played supporting roles in the British films Under the Skin and Face (both 1997), before starring as Charleen—a victim of incestuous abuse—in Hold Back the Night (1999), with her work being called "impressive" by The Observer. In a similarly positive review, Brian Logan of The Guardian wrote, "[The film's] chief virtue is its star, Christine Tremarco, [who] does teenage rage more viciously than I've ever seen it". That same year, she appeared in the Channel 4 television film Dockers (1999), a BAFTA-nominated drama based on the Liverpool dockers' dispute.

2000–2009: Theatre, film, and Waterloo Road Tremarco's performance in David Harrower's Presence at the Royal Court Theatre in 2001, where she played a German waitress desperate to reinvent herself as American, was well received by critics. Following substantial parts in the films Anita and Me (2002), Gifted (2003), and The Trouble with Men and Women (2005), as well as a key role in the first series of the critically acclaimed BBC/HBO thriller Five Days, she began appearing as Davina Shackleton—a learning support assistant—in the school-based BBC drama Waterloo Road; a role she played from 2007 to 2009. She then starred as Ellie Morgan, a woman facing bankruptcy and forced to sell her home, in an episode of the BBC anthology series Moving On, broadcast in May 2009.

2010–present: Television roles and Adolescence success In January 2010, Tremarco guest-starred in two episodes of the BBC's long-running medical drama series, Casualty. Owing to positive audience feedback, her character—A&E nurse Linda Andrews—was reintroduced as a regular on the show the following year. Upon her departure from Casualty in May 2013, she played supporting roles in the miniseries Glue (2014) and Safe House (2015), had a small part in the 2015 film Hector, and co-starred as Marie Thompson—the parent of a gang member involved in a murder cover-up—in the factual ITV drama Little Boy Blue (2017).

Following a mixture of leading and recurring roles in television series such as Clink (2019), Wolfe (2021), The Responder (2022), and The Gathering (2024), Tremarco joined the cast of ITV's long-running soap opera, Emmerdale, where she appeared as the free-spirited Rose Jackson for four months between April and August 2024.

Tremarco's performance in the four-part crime drama series Adolescence, which debuted on Netflix in March 2025 to record viewing figures, was particularly well received. Writing for The Guardian, Michael Hogan described her work as Manda Miller—a distraught mother reeling from the news that her 13-year-old son has carried out a fatal stabbing—as "heartbreaking"; while Nandini Balial of RogerEbert.com felt she was "a revelation". It was announced in July 2025 that Tremarco had been nominated for a Primetime Emmy Award for her portrayal of Miller. She also won the British Academy Television Award for Best Supporting Actress in 2026.

Filmography +Key Denotes works that have not yet been released Film YearFilmRoleNotes 1994 Priest Lisa Unsworth 1997 Under the Skin Vron Face Sarah1999 Dockers Paula Walton Television film Hold Back the Night Charleen 2002 Anita and Me Sandy2003 Gifted Sharon Harrison Television film On the Out Mirriam Television film2004 I'm a Juvenile Delinquent – Jail Me! Various Television film Pretending to Be Judith Maria Television film2005 Uncle Adolf Eva Braun Television film The Trouble with Men and Women Karen Faith Michelle Andrews Television film2006 Trigger Happy The Girl Short film That Summer Day Music Teacher Television film 2009 Ingenious Samantha Television film 2010 Outcast Housing Officer 2015 Hector Kate 2016 ID2: Shadwell Army Alison 2021 The Pebble and the Boy Dawn

Television YearTitleRoleNotes 1993 The Leaving of Liverpool Lily Television film1995 Hearts and Minds Fifth Former 1 episode Bordertown Louise Pearson Miniseries; 10 episodes 1996–1997 Springhill Trish Freeman Recurring; 26 episodes1997 Heartbeat Cathy Thompson Episode: "Leaving Home" Lloyds Bank Channel 4 Film Challenge Jane Episode: "Family Ties"1998 City Central Nikki Reed Recurring; 7 episodes Coronation Street Lucy Johnson 1 episode Trial & Retribution Cheryl Goodall 2 episodes1999 Liverpool 1 Michelle Episode: "Pause for Thought" Shockers Deborah Episode: "The Dance"2000 The English Programme Paula Walton Recurring; 3 episodes Clocking Off Katherine Mackintosh Recurring; 4 episodes 2001 Swallow Lorraine Landry Miniseries; 3 episodes 2001–2002 Nice Guy Eddie Ange McMullen Series regular; 7 episodes 2002 Night Flight Pam Atwell Miniseries2003 Casualty Sarah Jennings Episode: "Against Protocol" Real Men Paula Savage Miniseries; 2 episodes Coming Up Rachel Episode: "Loveless" 2004 Family Business Lisa 1 episode 2004–2005 Fat Friends Clare 2 episodes2005 The Rotters' Club Miriam Newman Miniseries; 2 episodes Donovan Sharon Paige 1 episode The Ghost Squad Jo Miller Episode: "One of Us"2006 New Street Law Judy Richards Episode: "To the Naked Eye" Dalziel and Pascoe Nerissa Barron Episode: "The Cave Woman"2007 Five Days Leanne Wellings 2 episodes New Tricks Christy Berlin Episode: "Big Topped" 2007–2009 Waterloo Road Davina Shackleton Series regular; 44 episodes 2009 Moving On Ellie Morgan Episode: "Drowning Not Waving" 2010–2013 Casualty Linda Andrews Series regular; 73 episodes2011 Silent Witness Sonia Hardwick Episode: "Lost" Justice Marie Episode: "This Town" 2012 Good Cop Nurse Justine Miniseries; 4 episodes 2013 Talking to the Dead DC Eluned Jones Miniseries; 2 episodes 2014 Glue Nadya Miniseries; 4 episodes 2015 Safe House Becky Miniseries; 4 episodes 2017 Little Boy Blue Marie Thompson Miniseries; 4 episodes 2019 Clink Sinead Kovac Series regular; 10 episodes 2020 Tin Star Carrie McGrath Episode: "Collateral" 2021 Wolfe Betsy Chambers Series regular; 6 episodes2022 The Responder Dr. Diane Gallagher Recurring; 3 episodes The Window Teresa Burdett Recurring; 8 episodes2024 The Gathering Carianne Recurring; 6 episodes Kidnapped: The Chloe Ayling Story Bea Miniseries; 2 episodes Emmerdale Rose Jackson Series regular 2025Adolescence Manda Miller Miniseries; 2 episodes

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