Rhashan Stone plays Dev
Writer Anil Gupta describes Dev as "basically a simple soul".
"He has a puppyish enthusiasm and lack of sophistication which is charming but also means he is chronically prone to faux pas and is at the mercy of his emotions.
"Rhashan has a wonderful face for Dev – he is able to convey that moment between saying something you shouldn't and realising what you've said superbly."
Rhashan explains: "Dev is a housing officer and is seemingly happily married to Anita, with a gorgeous five-year-old daughter.
"He is basically hapless and totally useless. Send him out for a pint of milk and a loaf of bread and he'll find a homeless puppy and come back with a pot plant!
"Lovely, delicious Leigh is widowed and has nowhere to live and not many friends to call on.
"They get on really well and a flirtation occurs, but he doesn't understand what is going on.
"He gets a fizzy feeling in his stomach and he doesn't quite know what it means until he has one beer too many and leaps on her.
"But he and his wife are not particularly tactile, and Leigh makes him feel good – I'm sure he'd run a mile if she reciprocated!"