Returning: Death ValleyGwyneth Keyworth and Timothy Spall on a mission to bring justice back to the mid-Wales region. Season 2 of Welsh comedy-crime series Death Valley, premieres on BritBox on Tuesday. The six part series stars Gwyneth Keyworth and Timothy Spall. To make matters worse, she’s been ignoring John, played by Timothy Spall (Harry Potter, Mr. Turner, Sweeney Todd, The Sixth Commandment), following an unexpected revelation. Starring Timothy Spall (Harry Potter, Mr. Turner, Sweeney Todd, Secrets & Lies), Gwyneth Keyworth (Misfits, Hidden, Black Mirror), Alexandria Riley (Torchwood, The Pembrokeshire Murders, Silo), Rithvik Andugula (O’Dessa, Extraordinary, The Children), and Steffan Rhodri (Submarine, Harry Potter, Wonder Woman).