His debut was in a Minnie Driver film, Hunky Dory, which was shot in Wales, which is where Merv lives. Filming for Atlantis lasted for twelve weeks and apparently he is 'very prominent' in the crowd scenes in episode one, in particular.
He is about to start filming something new. I bet he soon bags a speaking part because he has years of experience declaiming his poems at Poetry Slams, going by the name of Read the Rock Poet, and he is also a songwriter.
It must be in the blood, because I have been writing songs since I was six years old and also write poetry - and am reading some in public at Uxbridge Bigfest's Literature Lounge on Sunday afternoon. Big marquee in front of the Civic Centre, if anyone happens to be passing!