Celebrity Traitors is back and the new series has already delivered plenty of chaos, with 21 famous faces entering the Scottish Highlands for a game of secret missions, deception and betrayal.

The BBC reality hit returned on Thursday night (October 1), with Claudia Winkleman back in charge as a new group of actors, comedians, musicians, broadcasters and TV presenters entered the castle.

Viewers did not have to wait long for the first major twist, with Winkleman choosing just two Traitors at the beginning of the game rather than the usual three.

This year's original Traitors were Maya Jama and Richard E Grant, with James Acaster later recruited as the third member of their coven.

Grant even explicitly revealed to Joe Lycett that he was a Traitor during the first episode, leaving the Faithfuls none the wiser about whether he was joking or telling the truth.

In episode two, the Traitors were given a choice between James Acaster and Amol Rajan, with one celebrity set to be recruited and the other facing murder.

They chose to recruit Acaster, who was welcomed into the coven by Grant and Jama.

Grant told him: “James, we’d like to welcome you as a new Traitor to the coven.”

Acaster replied: “This is like every emotion I’ve ever felt.”

Amol Rajan was subsequently murdered by the Traitors.

While the Traitors attempt to remain undetected as they "murder" contestants from the game each night, the Faithfuls must work out who is lying before they are picked off.

There is also a cash prize of up to £100,000 for the winner's chosen charity.

The second series features a star-studded line-up of 21 actors, comedians, musicians and some of Britain's best-known TV personalities.

Following Amol Rajan's murder in Friday night's episode, 20 celebrities remain in the castle, with the first Round Table banishment set to take place next week.

Irish comedian and podcaster Joanne McNally has entered the castle after making a name for herself with her stand-up shows, podcasts and TV appearances.

She is one of the most recognisable comedians in the cast and has been priced among the early favourites to win.

Welsh actor Michael Sheen is best known for roles in films and TV shows including Frost/Nixon, Good Omens and The Queen.

The acclaimed actor is another of the celebrities bookmakers have placed towards the front of the market.

Singer-songwriter James Blunt has swapped the stage for the castle after finding fame with hits including You're Beautiful and Goodbye My Lover.

Actor Bella Ramsey rose to international fame playing Ellie in HBO's The Last of Us, having previously appeared as Lyanna Mormont in Game of Thrones.

The actor joins a cast featuring several other major names from the worlds of film and television.

The Love Island host has also presented shows including Glow Up: Britain's Next Make-Up Star and BBC Radio 1 programmes.

Comedian James Acaster is known for his stand-up career, Taskmaster appearances and distinctive deadpan style.

He is now putting his ability to read a room to the test as he attempts to work out who he can trust.

Known for his comedy, television work and elaborate public stunts, Lycett is attempting to navigate the game's alliances and betrayals.

Actress Julie Hesmondhalgh is best known for playing Hayley Cropper in Coronation Street.

She has since appeared in a number of acclaimed television dramas, including Broadchurch and Happy Valley.

Scottish actress Sharon Rooney is known for roles in My Mad Fat Diary and Barbie, as well as her work across television and film.

She is representing the acting contingent as the celebrities attempt to spot the Traitors among them.

Model and actress Jerry Hall is one of the most internationally recognisable names in the cast.

She has enjoyed a long career in fashion, television and entertainment and is now be taking on one of reality TV's most deceptive games.

Mathematician and broadcaster Professor Hannah Fry brings a very different skill set to the castle.

Former Little Mix star Leigh-Anne Pinnock has joined the series after establishing herself as a solo artist and television personality.

Pinnock has also made headlines with her acting work and documentary projects since Little Mix went on hiatus.

Comedian and actress Miranda Hart is best known for her hit BBC sitcom Miranda, as well as appearances in Call the Midwife and films including Spy.

Her comedic timing could prove useful around the round table, where contestants must decide who they believe is lying.

He hosts shows including The Romesh Ranhanathan Show podcast and The Weakest Link and is known for his dry style of humour.

He has appeared on numerous comedy and entertainment shows and co-hosts the popular Parenting Hell podcast with Josh Widdicombe.

His experience interviewing people and uncovering stories could make him an interesting player in the castle.

Oscar-nominated actor and now Traitor Richard E Grant brings decades of film and television experience to the competition.

His credits include Withnail & I, Can You Ever Forgive Me? and Star Wars: The Rise of Skywalker.

Actor Sebastian Croft is best known for playing Ben Hope in Netflix's Heartstopper.

He has also appeared in films and television projects including Horrible Histories: The Movie.

American actor Myha'la is known for roles in Industry, Bodies Bodies Bodies and Leave the World Behind.

She has joined the international contingent of the cast for the second celebrity series.

YouTuber and boxer King Kenny, whose real name is Kenny Ojuederie, is one of the younger stars who has entered the castle.

He rose to fame through YouTube before moving into boxing and influencer entertainment.

With the series now underway, Oddschecker has published its latest prices for the Celebrity Traitors winner market.

Michael Sheen is currently priced at 5/1, followed by Bella Ramsey at 6/1 and Romesh Ranganathan at 7/1.

James Acaster, Joanne McNally and Rob Beckett are all priced at 8/1, while Maya Jama, Miranda Hart and Ross Kemp are each at 10/1.

The current Oddschecker prices are:

Michael Sheen – 5/1 Bella Ramsey – 6/1 Romesh Ranganathan – 7/1 James Acaster – 8/1 Joanne McNally – 8/1 Rob Beckett – 8/1 Maya Jama – 10/1 Miranda Hart – 10/1 Ross Kemp – 10/1

Betting odds can change throughout the series and are not a guarantee of the eventual winner.