Grace S6 kicks off with Left You Dead and episode 1 has a guest cast from Grantchester, Blue Lights, and Coronation Street

Det Supt Roy Grace and DI Glenn Branson are back - with some fresh faces
Helen Fear

Grace is back on ITV with series 6 and John Simm and Richie Campbell are back leading the cast as Det Supt Roy Grace and DI Glenn Branson in episode 1 Left You Dead episode 1 cast.

The first of four feature-length films kicks off several months on from Cassian Pewe’s arrest. This time, Grace’s team unravels four complex investigations while a “quest for the truth ends in devastating consequences” for the detective duo.

In episode 1 – Left You Dead – the aftermath of ACC Cassian Pewe’s betrayal hangs heavily over East Sussex Police. It’s several months on and the team is in the centre of an anti-corruption enquiry… Meanwhile, Roy agonises over whether to trust Cassian’s intel about Sandy’s murder and the threat to Bruno’s life.

Amongst this all, Grace and Brandon are plunged into a case “filled with secrets” after a Brighton property developer reports his wife missing. Here’s who plays who in the cast of Grace series 6, episode 1 Left You Dead.

Rishi Nair as Neel Siddiqui in Grace series 6 episode 1 Left You Dead
Grantchester’s Rishi Nair as Neel Siddiqui in Grace series 6 episode 1 Left You Dead (Credit: ITV)

Rishi Nair guest stars as Neel Siddiqui in Grace series 6 episode 1 Left You Dead

London-born actor Rishi Nair plays morally ambiguous Neel Siddiqui in Grace series 6. Of course, Grantchester fans will know the actor for portraying charismatic and witty vicar, Alphy Kotteram opposite Robson Green’s Geordie Keating. He replaced Reverend Will Davenport in 2024 after his departure. Sadly, Grantchester is coming to an end in 2027, so series 11 will be his last as Alphy.

Of course, soap fans will know Rishi as Sami Maalik in Hollyoaks, a role he played from 2017 to 2021. Rishi joined the cast of the Channel 4 soap and took centre stage in a number of high-profile plots. The character had memorable relationships with Ellie Nightingale, Sinead O’Connor, Liberty Savage and Verity Hutchinson.

Sami also played a key role in Hollyoaks’ far-right storyline, which saw the Maalik family come under threat from an extremist group who began targeting them with racist abuse.

Rishi, 35, is also famous for playing Maajid in Count Abdulla, Adnan in Whitstable Pearl, and Shamil Malik in The Marlow Murder Club.

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Hannah McClean as Rebecca Rowan in Grace series 6
Blue Lights star Hannah McClean as Rebecca Rowan in Grace series 6 (Credit: ITV)

Hannah McClean plays Rebecca Rowan

Northern Ireland actress Hannah McClean stars as Rebecca Rowan in series 6 of Grace. Blue Lights fans will know Hannah for playing cop-turned-solicitor Jen Robinson in the brilliant police series. She appeared in series 1 and 2, and will be back in the upcoming Blue Lights series 4. It’s set to be a cracking six episodes, and will see the return of fan-favourite Richard Dormer as Gerry Cliff.

Hannah made her very first TV appearance in 2013, when she played Sarah in an episode of 6Degrees. She went on to appear in episodes of Josh, and Sick Note.

More recently, Hannah portrayed Rosie Newman in Malpractice series 2. Rosie tragically died in horrific circumstances after suffering from postpartum psychosis. The investigation into her death was the centre of the plot.

Last year, she got her first big film role, playing Charlotte in the Glenn Powell thriller The Running Man.

Jamie Kenna as Cillian Smith in Grace
Actor Jamie Kenna as Cillian Smith in this week’s Grace (Credit: ITV)

Jamie Kenna stars as Cillian Smith

Actor and former semi-professional footballer (formerly of Rusthall FC) Jamie Kenna joins the cast as Cillian Smith. Soap fans will know Jamie for playing Phill Whittaker in Coronation Street between 2021 and 2022. He may only have appeared in 63 episodes, but he made quite the impression. 

Phill Whittaker made his first appearance in July 2021 and stayed for about a year. He began dating Fiz Stape following her separation from cheating partner Tyrone Dobbs. In July 2022, Fiz returned to Tyrone and collected her things from Phill’s house prompting Phill to leave Weatherfield.

That was Jamie’s most significant TV role. However, he’s also popped up in 55 Degrees North, EastEnders, Heartbeat, The Bill, Doctors, and Silent Witness.

In 2024, Jamie portrayed Ser Alfred Broome in House of the Dragon series 2. He has since popped up in Grantchester, and Brassic. He’s been in multiple films, including London to Brighton, Green Street, Blitz, and Gran Turismo. He’s set to appear in the upcoming Michelle Keegan thriller The Blame.

Gurjeet Singh as Devan Siddiqui in Grace
Ackley Bridge star Gurjeet Singh as Devan Siddiqui in Grace series 6 (Credit: ITV)

Gurjeet Singh portrays Devan Siddiqui

Manchester-born Gurjeet Singh, 31, plays Devan Siddiqui in Grace series 6 episode 1 Left You Dead. He’s been on our screens for about 20 years, but is best known for playing student Naveed Haider in Ackley Bridge. He appeared in the Yorkshire school drama between 2017 and 2019. 

He subsequently portrayed Tez Sidhu in Meera Syal crime drama Mrs Sidhu Investigates, and Virat Sengupta in Hotel Portofino. As well as a healthy theatre career, he’s appeared in films including The Importance of Being Earnest, and Indian movies 25 Kille, and 31st October.

Tamla Kari as Eden Siddiqui in Grace
Actress Tamla Kari guest stars as Eden Siddiqui (Credit: ITV)

Grace series 6 Left You Dead episode 1 cast: Tamla Kari plays Eden Siddiqui

Coventry-born Tamla Kari, 37, stars as Eden Siddiqui in this week’s episode of Grace. She is perhaps most famous for playing Lucy in the 2011 The Inbetweeners movie, and its 2014 sequel. In fact her role in the first film was her first ever screen role.

Although Tamla is largely known for her comedic roles in series such as Cuckoo, and The Job Lot, she’s also been in plenty of dramas too. Between 2014 and 2016, she portrayed Constance in the Tom Burke series The Musketeers. Other notable roles include Olivia Talbot in The F1rst Team, Deborah in The Ipcress File, and Lucy Chapman in DI Ray.

She’s also appeared in episodes of Beyond Paradise, Sister Boniface Mysteries, Shakespeare & Hathaway: Private Investigators, Britannia, Vera, Call the Midwife, and Being Human.

Anthony Howell as Fergus Doyle in Grace
Foyle’s War star Anthony Howell as Fergus Doyle in Grace (Credit: ITV)

Who else guest stars in the cast of episode 1?

Anthony Howell stars as Fergus Doyle in this week’s Grace. An actor of more than 25 years, he’s best known for playing Paul Milner in Foyle’s War between 2002 and 2010. Other notable roles include Roger Hamley in Wives and Daughters, Lord Laurent in Dracula, and Father Christophe in You, Me and the Apocalypse. More recently, he starred as Neil Ferguson in This England, Christopher Swain in Netflix thriller Fool Me Once, and Lord Will Grafton in A Thousand Blows.

Ali Khan portrays Jayden Siddiqui. The young actor made his name as Tariq ‘Taz’ Sadiq in the teen drama Red Rose, and had since played Mani Malik-Cohen in Showtrial series 2, and Joshua in Everyone Else Burns.

Ellie McKay plays Holly Smith. She’s famous for portraying Florence Hartswood in the comedy Austin, and Orla in the recent series 2 of Hijack.

Richie Campbell and John Simm as DS Glenn Branson and DS Roy Grace
Two bombshells entered the villa (Credit: ITV)

Full cast list of Grace series 6 episode 1 Left You Dead:

John Simm stars as Det Supt Roy Grace.

Richie Campbell returns as DI Glenn Branson.

Zoe Tapper plays Cleo Morey.

Laura Elphinstone portrays DS Bella Moy.

Brad Morrison is DC Nick Nicholl.

Rebecca Scroggs stars as Ari Branson.

Juliette Motamed portrays DC Vee Wilde.

Finn Guegan as Bruno.

Guest cast includes:

Rishi Nair as Neel Siddiqui.

Hannah McClean as Rebecca Rowan.

Jamie Kenna as Cillian Smith.

Gurjeet Singh as Devan Siddiqui.

Tamla Kari as Eden Siddiqui.

Anthony Howell as Fergus Doyle.

Ali Khan as Jayden Siddiqui.

Ellie McKay as Holly Smith.

Newcomer Harry Singh as Ravi Ahmed.

Private Lives’ Victoria Bolt as the prosecution lawyer.

The Essex Serpent’s Law Ballard as the senior officer.

Sara Powell as Cynthia Slater.

Ben Deery as the forensic officer.

Read more: Two Birds on ITV: Sheridan Smith stars in ‘exhilarating mystery thriller’ set in Western Australia

Grace returns with series 6 on Sunday, March 29, 2026 at 8pm on ITV1.