Jacqui Honess-Martin Creator, Writer, Executive Producer Parminder Nagra Maryam Afridi Actor Lara Pulver Catherine MacDiarmid Actor Lisa McGrillis Helen Cavendish Actor Raza Jaffrey Jack Oliviera Actor Oliver Chris Guy Cavendish Actor Abhin Galeya Raz Farooqi Actor Julie Graham Susan Fisher Actor Alexander Karim Lars Nördstrom Actor Aurora Jones Maggie Cavendish Actor Mat Fraser Steve Actor Haydn Gwynne Anne MacDiarmid Actor Matilda Ziegler Becky Hillford Actor Shaheen Khan Sania Masoom Actor Sabina Arthur Kim Allerton Actor Dean Ridge Simon Segman Actor Harts Mr. Williams Actor Cleo Sylvestre Mrs. Osei Actor Stephanie Jacob Mrs. Smith Actor William Ladd Skinner Will Actor Jennifer Macbeth Tessa Joseph Actor Betsan Morris Evans Producer Amanda Blue Director Rebecca Gatward Director James Griffiths Director, Executive Producer Kathryn Pugsley Executive Producer Patrick Spence Executive Producer Emilie Levienaise-Farrouch Original Music