William Beck as Dylan Keogh
Michael Stevenson as Iain Dean
Charles Venn as Jacob Masters
Neet Mohan as Rash Masum
Di Botcher as Jan Jenning
Kirsty Mitchell as Faith Cadogan
Elinor Lawless as Stevie Nash
Milo Clarke as Theodore "Teddy" Gowan
Anna Chell as Jodie Whyte
Barney Walsh as Cameron Mickelthwaite
Sarah Seggari as Rida Amaan
Adesuwa Oni as Ngozi Okoye
Melanie Hill as Siobhan Mackenzie
Derek Thompson as Charlie Fairhead
Nigel Harman as Max Cristie
Osi Okerafor as Matthew Afolami
Arin Smethurst as Sah Brockner
Bobby Lockwood as Leon Cook
Shaheen Jafargholi as Marty Kirkby
Jack Nolan as Will Noble
Genesis Lynea as Archie Hudson
Maddy Hill as Ruby Spark
Gabriella Leon as Jade Lovall
Orlando Seale as Merlin Jameson
Donna Alexander as Penny Hutchens
Matthew Wait as Luke Warren
Ian Kelsey as Patrick Spiller
Robson Green as Porter "Jimmy"
Kwame Kwei-Armah as Finlay "Fin" Newton
Elyes Gabel as Dr. Gurpreet "Guppy" Sandhu
Robert Gwilym as Max Gallagher
Andy Robb as
Kelly Harrison as Nikki Marshall
Jonathan Kerrigan as Sam Colloby
Sandra Huggett as Holly Miles
Christopher Colquhoun as Simon Kaminski
Sorcha Cusack as Ward Sister "Kate"
Alex Walkinshaw as Staff Nurse "Fletch"
Lee Mead as Nurse "Lofty"
Charles Dale as Paramedic "Big Mac"
Richard Winsor as Caleb "Cal" Knight
Amanda Mealing as Connie Beauchamp
George Rainsford as Ethan Hardy
Matt Bardock as Paramedic "Jeff"
Jane Hazlegrove as Operational Duty Manager "Dixie"
Crystal Yu as Lily Chao
Azuka Oforka as Louise Tyler
Patrick Robinson as Consultant "Ash"
Jamie Davis as Max Walker
Tony Marshall as Noel Garcia
Chloe Howman as Nurse "Rita"
Amanda Henderson as Robyn Miller
Suzanne Packer as Clinical Nurse Manager "Tess"
Sunetra Sarker as Trauma Lead "Zoe"
Gemma Atkinson as Paramedic "Tamzin"
Sophia Di Martino as Paramedic "Polly"
James Redmond as F Grade Mental Health Nurse "Abs"
Tristan Gemmill as Consultant "Adam"
Gemma-Leah Devereux as Student Nurse "Aoife"
Simon MacCorkindale as Consultant & Director of Emergency Medicine "Harry Harper"
Daniel Anthony as Student Nurse "Jamie"
Georgia Taylor as F2 Doctor "Ruth"
Chelsea Halfpenny as Alicia Munroe
Jason Durr as David Hide
Jaye Griffiths as Elle Gardner
Lloyd Everitt as Jeremy "Jez" Andrews
Cathy Shipton as Lisa "Duffy" Duffin
Rik Makarem as Sebastian Grayling
Joe Gill as Moxy Price
Michael Parr as Mark Satchmore
Shalisha James-Davis as Paige Allcott
Jaye Jacobs as Donna Jackson
Eddie-Joe Robinson as Ryan Firth