In 2020 he played Tom Brannick in Bloodlands and in 2021 we saw him in Netflix drama Stay Close.
In Suspect he played veteran detective Danny Frater, who discovers his daughter is dead when faced with her in the hospital morgue.
Richard E. Grant as Harry Carr
Richard E. Grant is a 65-year-old Swazi-English actor and presenter.
He is known for cult movie Withnail And I, and he's also appeared in Gosford Park and Star Wars: The Rise of Skywalker.
He received critical acclaim for his role as Jack Hock in Marielle Heller's drama film Can You Ever Forgive Me? (2018).
He's also known for his roles in TV including Doctor Who (2012-2013), Downton Abbey (2014), Game of Thrones (2016), and Loki (2021).
Richard plays business mogul Harry Carr in Suspect.
Read More on Suspect
Find out if Channel 4’s Suspect is based on a true story?
James Nesbitt & Richard E. Grant to front gripping Channel 4 thriller Suspect
Born on February 24, 1966, Ben Miller started his acting career by starring in Channel 4's television series Armstrong and Miller, which ran for four series from 1997 to 2001.
He as the original detective featured in popular BBC drama Death In Paradise, playing Richard Poole.
In 2020, Miller played the role of Lord Featherington in the hugely popular Netflix period drama Bridgerton.
In 2021, the actor starred as Cambridge lecturer and detective Jasper Tempest in the six-part crime drama Professor T.
Joely Kim Richardson is a 57-year-old English actress, known for her role as Julia McNamara in the FX drama series Nip/Tuck, and Queen Catherine Parr in the Showtime series The Tudors.
She also appeared in several films including 101 Dalmatians (1996), Return to Me (2000), Anonymous (2011), the film adaptation of The Girl with the Dragon Tattoo (2011), and the remake of Endless Love (2014).
In 2015 she co-starred alongside Arnold Schwarzenegger in the thriller film Maggie.