[3] The series co-stars Stephen Mangan, Fiona Button, Annabel Scholey and Barry Atsma.

[4] Donna Air and Ben Bailey Smith joined the cast for the second series as high-profile clients for the law firm[11] and Damien Molony as the character Tyler Donaghue.

[12] The first episode of series 2 aired in the UK on BBC One on 11 February 2020[13] and in the United States on Sundance TV beginning on 15 May 2020.

[19] On 22 February 2024, it was announced there would be a spin-off series, The Split-Up, set in Manchester and to be written by Ursula Rani Sarma.

[20] In September 2024, it was announced production had been suspended amid creative issues, though the BBC reaffirmed commitment to producing the series.