Chelsea Halfpenny
Halfpenny's professional acting career began in 2004 when she appeared in "Casualty" episode ""What Parents Do"", playing an eleven-year-old girl called Karine.
Casualty (series 30)
Cathy Shipton guest starred as original character Lisa "Duffy" Duffin in the two-part series opener. Her guest return was announced on 24 August 2015, with Shipton commenting, "I was surprised and delighted to be asked to recreate the role of 'Duffy' to launch the 30th series – especially as Paul Unwin, one of the original creators, was not only writing but also directing." Shipton's permanent return to the series was announced on 7 June 2016, with Kent commenting, "All of us at Casualty are incredibly excited that the fabulous Cathy Shipton has agreed to bring Duffy back to the Emergency Department." Duffy was confirmed to make a guest appearance in episode thirty-nine, the show's thousandth episode, before returning permanently in the following series. Mark Letheren made a guest appearance in episode four as counsellor Ben Harding, a role he has played on-off since 2007. Sarah Jayne Dunn, who appeared for five months in the previous series, made a cameo appearance in episode seven as Cal's ex-girlfriend Taylor Ashbie, before making a more prominent appearance in the red-button episode which followed the episode, entitled "On Call". Guy Henry, who appears regularly in "Holby City" as the hospital's chief executive officer Henrik Hanssen made three guest appearances throughout the series: episode nineteen, episode thirty-four, and episode thirty-five. Henry previously appeared in several episodes in 2011. Tom Chambers made two guest appearances as his "Holby City" character Sam Strachan in episodes twenty-three and twenty-four, whilst Emily Carey returned in the role of Grace Beauchamp in a storyline which reunited Sam with Connie, his former partner and Grace's mother. Rosie Marcel made a guest appearance as her "Holby City" character Jac Naylor in episode twenty-three.
Amy Noble made four guest appearances throughout the series as PC Kate Wilkinson. Kerry Bennett joined the cast in a recurring capacity as HART paramedic Jess Cranham in episode six, along with Anna Acton and Grace Doherty, who joined the cast as Jess's partner and daughter Nikki Chisom and Olivia Cranham in episode twelve, were part of a storyline which saw Dixie take "center stage". They were involved in a domestic abuse storyline which concluded in episode eighteen, broadcast on 9 January 2016, when a hostage situation and fire occurred leading to Nikki being arrested. Bennett and Doherty continued to appear in the series until episode twenty-one when they departed alongside Hazlegrove. The show's co-creator Paul Unwin pitched a storyline which saw Ethan and Cal discover they are adopted. Carol Royle was introduced as the brothers' biological mother Emilie Groome in episode sixteen. Her final appearance was made in episode twenty-seven, where she died at the seaside accompanied by Cal and Ethan. Hannah Spearritt joined the cast in a recurring capacity as Mercedes Christie, a drug addict that attacked Noel and later blackmailed Big Mac in a long-running storyline. She made her debut in episode twenty for one episode, and returned for more prominent appearances from episode twenty-four. Kelli Hollis joined the cast in episode twenty-four as Shelle Jones, Mercedes' drug dealer. Mercedes son and partner, Connor Christie and Vince Callaghan were introduced in episode twenty-eight, played by Toby Murray and Andrew Knott respectively. Connor departed in episode thirty-three, whilst Mercedes, Shelle and Vince made their final appearance in the following episode.