Casualty series 23

The twenty-third series of the British medical drama television series Casualty commenced airing in the United Kingdom on BBC One on 13 September 2008, and concluded on 1 August 2009.

Main characters

 * Matt Bardock as Jeff Collier
 * Ivana Basic as Snezana Lalovic (until episode 31)
 * Charles Dale as Big Mac
 * Sophia Di Martino as Polly Emmerson (from episode 29)
 * Michael French as Nick Jordan (episodes 3−48)
 * Tristan Gemmill as Adam Trueman
 * Sam Grey as Alice Chantrey
 * Jane Hazlegrove as Kathleen "Dixie" Dixon
 * Gillian Kearney as Jessica Harrison
 * Tony Marshall as Noel Garcia
 * Janine Mellor as Kelsey Phillips (until episode 31)
 * Matthew Needham as Toby De Silva (until episode 19)
 * Suzanne Packer as Tess Bateman
 * James Redmond as John "Abs" Denham (until episode 7)
 * Abdul Salis as Curtis Cooper (until episode 48)
 * Sunetra Sarker as Zoe Hanna
 * Georgia Taylor as Ruth Winters
 * Derek Thompson as Charlie Fairhead
 * Ben Turner as Jay Faldren (from episode 8)

Recurring characters

 * Adrianna Bertola as Sharice Brooks (episodes 8−35)
 * Tom Chadbon as Henry Williams (from episode 1)
 * Richard Dillane as Sean Anderson (episodes 14−47)
 * Danny Emes as Lucas Anderson
 * Miffy Englefield as Amelia Anderson
 * Caroline Langrishe as Marilyn Fox (until episode 11)
 * Mark Letheren as Ben Harding (episodes 3−19)
 * Amy Manson as Abby Evans (episodes 8−20)
 * Joseph Morgan as Tony Reece (episodes 8−39)
 * Andrew Newton-Lee as Stacey Merrick (until episode 4)
 * Sarah-Jane Potts as Ellie Bridges (until episode 7)

Guest characters

 * Susan Cookson as Maggie Coldwell (episode 31)
 * Sharon Duce as Sheila Denham (episodes 3 and 6)
 * Gregory Foreman as Louis Fairhead (episode 27)