On a brilliantly sunny day in west London, the Thames shimmering nearby and even the hovering gulls looking rueful not to be wearing shades, it feels somehow wasteful to be sitting inside, having a coffee in a dark nook at the Riverside Studios theatre with Lenora Crichlow.
But the star of BBC sci-fi show Being Human and appearing, this month, in the channel's new eight-part whodunnit Death in Paradise makes no complaint. She's used to shunning good weather to spend time in remote and windowless corners of this building, having started her career here, informally, aged 11, as a member of the in-house youth theatre company, YoungBlood.
"We used to use a space upstairs," says the 26-year-old, who grew up in north-west London and still lives nearby. "Every weekend, every holiday, in a room with no windows