The actors are friends in real life, both Straight but Not Narrow. Mitch Hewer has played gay characters several times, and Joe has played a gay teenager in the British radio play Once Upon a Time (2010), and several gay-subtext characters.
1. Clive on an episode of Doctor Who.
2. Will, an old friend of Merlin's
The villain John in The Fades is heterosexual, but at least he gets naked.