INSIDE No 9 is back once more for another season of dark humour.
Find out everything you need to know about the guest stars that will be appearing in the hit BBC Two series.
Diane Morgan is a 46-year-old English actress, comedian, and writer.
She is best known for playing Liz in the BBC Two sitcom Motherland, and Kath in the Netflix dark comedy series After Life.
The actress lives in Bloomsbury with her boyfriend, BBC comedy producer Ben Caudell.
Mark Gatiss is a 55-year-old English actor, comedian, screenwriter, director, producer and novelist.
He is best known for playing Tycho Nestoris in the HBO series Game of Thrones.
He has written and acted in the TV series Doctor Who, Sherlock, and Dracula.
More on BBC Two
Annette Badland is a 71-year-old English actress.
She is best known for her roles as Margaret Blaine in the BBC science fiction series Doctor Who, and Babe Smith in the BBC soap opera EastEnders.
She was nominated for the Laurence Olivier Award for Best Actress in a Supporting Role in 1993 for her performance in the play The Rise and Fall of Little Voice.
Daniel Mays is a 44-year-old English actor.
He starred in series three of the BBC drama Line of Duty as Sergeant Danny Waldron, a role in which he was nominated for a Bafta Television Award for Supporting Actor.
In 2020, he played the lead role of Detective Chief Inspector, Peter Jay, in the three-part ITV mini-series Des.
Jason Isaacs is a 58-year-old English actor.
His most notable roles include, William Tavington in The Patriot (2000), Lucius Malfoy in the Harry Potter films, Mr. Darling/Captain Hook in Peter Pan (2003), and Maurice in Good (2008).
In 2014, he starred in the World War II-set film Fury alongside Brad Pitt and Shia LaBeouf.
Sophie Okonedo CBE is a 53-year-old British actress and narrator.
She made her acting breakthrough in 2004, when she co-starred in the film Hotel Rwanda as Tatiana Rusesabagina.
Her other film roles include Æon Flux (2005), Skin (2008), The Secret Life of Bees (2008), and Christopher Robin (2018).
Tallulah Jessica Elina Hynes, better known as Jessica Hynes, is a 49-year-old English actress, director and writer.
She has been nominated for a Tony, a Laurence Olivier Award, five Baftas (winning two) and three British Comedy Awards (winning two).
In 2019, she starred in the BBC and HBO production Years and Years.
Celia Daisy Morna Haggard is a 44-year-old British actress and writer.
She is best known for her roles in the BBC sitcoms Uncle and Episodes.
In 2020, Haggard starred in the comedy-drama Breeders as Ally.
Siobhan Redmond is a 62-year-old Scottish actress.
She has appeared in a number of series, including, Unforgotten (2018), The Bill (2007), and Doctor Who (2014).
Her best-known role is Detective Sgt. Mo Connell in the police series, Between the Lines (1992).
Ronald G. Cook is a 74-year-old English actor.
He played the company accountant, Mr Arthur Crabb, in the ITV series Mr Selfridge (2013 to 2016).
He is best known for his roles in Hot Fuzz (2007), Chocolat (2000) and Thunderbirds (2004).
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The seventh season of Inside No. 9 will premiere on BBC Two on Wednesday April 20, at 10pm.
There are six half-hour episodes in total, which will continue to air weekly on a Wednesday.
Once aired, each episode will become available to watch on BBC iPlayer.