Sophie Rundle plays Laura Simmonds, Steven Cree plays Sam Henderson, and Serena Manteghi plays Alba Ortiz.
Main cast
- Laura SimmondsSophie RundleSeasons Series 1[1][2][6]Main
- Sam HendersonSteven CreeSeasons Series 1[1][2][6]Main
- Alba OrtizSerena ManteghiSeasons Series 1[1][2][6]Main
- Carl HyndleyDylan BradySeasons Series 1[1][2][6]Main
- Colin SutherlandDanny SapaniSeasons Series 1[1][2][3][6]Main
- Mariona CabellLaia CostaSeasons Series 1[1][2][3][6]Main
- Inspector CastellsIsak FérrizSeasons Series 1[1][2][3][6]Main
- Fabian HartmannPhilipp BoosSeasons Series 1[1][2][6]Main
Supporting cast
- PaulaClare HolmanSeasons Series 1[1][2][6]Supp
- Seth MillerBert SeymourSeasons Series 1[1]Supp
- TomLadi EmeruwaSeasons Series 1[1][2][6]Supp
- Amy CallaghanEubha AkiladeSeasons Series 1[1][2][6][8]Supp
- Izzy MillerTamsin TopolskiSeasons Series 1[1]Supp
- Peter van der MeerEdon RizvanolliSeasons Series 1[1][2]Supp
Guest & voice
- Jay SutherlandNiyi AkinSeasons Series 1[2]Guest
- LolaMireia VilapuigSeasons Series 1[2]Guest
- Amanda WatkinsLindsey CoulsonSeasons Series 1[2]Guest
- GillianSarah PaulSeasons Series 1[2]Guest
- Gabby HurstMelissa JamesSeasons Series 1[2]Guest
- JennaNatalie SpenceSeasons Series 1[2]Guest
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About this cast
The Diplomat is a British TV series on Alibi (UKTV) first broadcast in 2023. Sophie Rundle leads as consul Laura Simmonds, with Steven Cree as intelligence officer Sam Henderson and Serena Manteghi as Alba Ortiz.
Cast FAQs
Who plays Laura Simmonds in The Diplomat?
Sophie Rundle
Who plays Sam Henderson in The Diplomat?
Steven Cree
Who plays Alba Ortiz in The Diplomat?
Serena Manteghi
Who is in the cast of The Diplomat?
Sophie Rundle, Steven Cree, Serena Manteghi, Dylan Brady, Danny Sapani, Laia Costa and others.
How many cast members are in The Diplomat?
20
Sources: Wikipedia · IMDb · IMDb · BBC Studios · World Productions · Updated June 2026