In Morriston Hospital in Swansea in 1994 a group of ordinary middle-aged Welsh men stepped into the unknown by taking part in the world's first medical trials for the drug that became Viagra.
Iwan Rheon
as Meurig Jenkins
Alexandra Roach
as Ffion Jenkins
Katy Wix
as Joanna Wootle
Steffan Rhodri
as Colin White
Mark Lewis Jones
as Eddie O’Connor
Phaldut Sharma
as Peetham ‘Pete’ Shah
Alexandria Riley
as Alys Shah
Paul Rhys
as Tommy Cadogan
Aneurin Barnard
as Dr. Dylan Pearce
Nathan Sussex
as Rhys Lancey
Joanna Page
as Moira Davies
Lisa Palfrey
as Teresa Rigby