Series 33

Series 33 is the 33rd series of Casualty and commenced airing on 11 August 2018. Filming for the series' first episode likely took place in Spring 2018. This series is set to comprise 47 episodes, the highest number of episodes in a series since series 28. In November 2018, new titles were introduced.

In February 2019, it was revealed that the 26th episode of the series would be the first part of a two-part crossover with sister show Holby City - the first since December 2005.

The beginning of the series saw the departure of paramedic Sam Nicholls, portrayed by Charlotte Salt. In November, Gabriella Leon and Shaheen Jafargholi joined the main cast as student nurses Jade Lovall and Marty Kirkby respectively. Over three years after her first appearance on the show, Chelsea Halfpenny made her final appearance as registrar Alicia Munroe. Four episodes later, Azuka Oforka departed from her role as senior staff nurse Louise Tyler, over six years after her arrival during the show's 27th series.

Series guest appearances
The series opener saw the introduction of Max Parker as recovering drug addict Alasdair "Base" Newman. Di Botcher continued her role as senior paramedic Jan Jenning, a role she started in the previous series; Rebecca Ryan also continued her role as porter Gem Dean, who first appeared in the show's 31st series. Also continuing into series 33 was Blake Gardner, portrayed by Kai Thorne.

In June, it was announced that Sharon Gless would return as neurosurgeon Zsa Zsa Harper-Jenkinson. In August, it was revealed that Ellen Thomas would appear as Omo Masters, the mother of nurse Jacob Masters. Later that month, a trailer was released, revealing that Brian Carroll, portrayed by Matthew Marsh, would make another appearance on the show; hia last appearance was during the show's 30th series in 2016.

Episode 2 saw Belinda Stewart-Wilson reprise her role as Ciara Cassidy; she had previously appeared earlier that year in March. The following episode saw the final appearance of Joe Gaminara as foundation doctor Eddie McCallister after a long storyline which saw his character rape registrar Alicia Munroe. In the same episode, Clive Wood made his first appearance as Bill Crowthers who would later become involved in a storyline surrounding Charlie Fairhead and Lisa "Duffy" Duffin. Buckso Dhillon-Woolley reappeared as Madia Masum; she would make an additional appearance in episode 9.

Episode 5 saw the first appearance of Ciara Cassidy's estranged husband Joel Dunns, portrayed by Gyuri Sarossy. Chris Gordon also joined the show as drug dealer Ross West. In episode 7, Sujaya Dasgupta and Jennifer Hulman made their first appearances as Jamila Vani and Rachael Crowthers respectively. Gareth David-Lloyd made his first appearance as Joshua Bowers in episode 12. In the subsequent episode, Paul Barber joined the show as homeless patient Ernest Maxwell.

In episode 22, Amy Noble reprised her role as DC Kate Wilkinson, a character who had appeared on-off since 2015. In February 2019, it was announced via a tweet from Charles Venn that Ellen Thomas would make reprise her role as Omo Masters later that year. . In episode 23, Sacharissa Claxton made her first appearance as Lilley Maxwell. The following week, Siân Reeves returned as Kim Harrison; she last appeared in the series 31 episode "Binge Britain".

On 20 February, the full cast list for the first part of the crossover with Holby City was released, revealing that 14 characters from the show would make a guest appearance, including former Casualty regular Adrian "Fletch" Fletcher, portrayed by Alex Walkinshaw.

Cast

 * For a listing of character appearances in this series, see Character appearances.

Main characters

 * Amanda Mealing as Connie Beauchamp
 * George Rainsford as Ethan Hardy
 * Jaye Griffiths as Elle Gardner
 * William Beck as Dylan Keogh
 * Chelsea Halfpenny as Alicia Munroe (until episode 20)
 * Neet Mohan as Rashid Masum
 * Derek Thompson as Charlie Fairhead
 * Cathy Shipton as Lisa "Duffy" Duffin
 * Charles Venn as Jacob Masters
 * Azuka Oforka as Louise Tyler (until episode 24)
 * Amanda Henderson as Robyn Miller
 * Jason Durr as David Hide
 * Gabriella Leon as Jade Lovall (from episode 12)
 * Shaheen Jafargholi as Marty Kirkby (from episode 13)
 * Michael Stevenson as Iain Dean
 * Charlotte Salt as Sam Nicholls (until episode 2)
 * Maddy Hill as Ruby Spark
 * Tony Marshall as Noel Garcia

Recurring/Guest characters

 * Di Botcher as Jan Jenning
 * Joe Gaminara as Eddie McCallister (until episode 3)
 * Rebecca Ryan as Gem Dean
 * Kai Thorne as Blake Gardner (until episode 8)
 * Max Parker as Alasdair "Base" Newman (episodes 1 - 21, 22 [uncredited] )
 * Belinda Stewart-Wilson as Ciara Cassidy (episodes 2 - 14)
 * Clive Wood as Bill Crowthers (episodes 3 - 16)
 * Buckso Dhillon-Woolley as Madia Masum (episodes 3 & 9)
 * Gyuri Sarossy as Joel Dunns (episodes 5 - 14)
 * Chris Gordon as Ross West (episodes 5 - 22)
 * Ellen Thomas as Omo Masters (episodes 6 & 8, mid-2019)
 * Sujaya Dasgupta as Jamila Vani (episodes 7 - 11)
 * Jennifer Hulman as Rachael Crowthers (episodes 7 & 16)
 * Sharon Gless as Zsa Zsa Harper-Jenkinson (episode 9)
 * Matthew Marsh as Brian Carroll (episode 9)
 * Gareth David-Lloyd as Joshua Bowers (episodes 12 - 20)
 * Paul Barber as Ernest Maxwell (episodes 13 - 24)
 * Amy Noble as Kate Wilkinson (episode 22)
 * Sacharissa Claxton as Lilley Maxwell (episodes 23 - 24)
 * Siân Reeves as Kim Harrison (from episode 24)
 * Bob Barrett as Sacha Levy (episode 26)
 * Francesca Barrett as Beka Levy (episode 26)
 * Naomi Katiyo as Darla Johnstone (episode 26)
 * Rosie Marcel as Jac Naylor (episode 26)
 * Guy Henry as Henrik Hanssen (episode 26)
 * Hugh Quarshie as Ric Griffin (episode 26)
 * Catherine Russell as Serena Campbell (episode 26)
 * Alex Walkinshaw as Adrian "Fletch" Fletcher (episode 26)
 * Kaye Wragg as Essie Di Lucca (episode 26)
 * Jaye Jacobs as Donna Jackson (episode 26)
 * Marcus Griffiths as Xavier "Zav" Duval (episode 26)
 * Nic Jackman as Cameron Dunn (episode 26)
 * Camilla Arfwedson as Zosia Self (episode 26)
 * Belinda Owusu as Nicky McKendrick (episode 26)