Premise: He is a member of the Royal Shakespeare Company and later joined the Renaissance Theatre Company. He has appeared in many of Kenneth Branagh's films, most recently as Corin in the 2006 film "As You Like It". Yuill was also the music composer for "A Midwinter's Tale" and "Swan Song".
Hypothesis: Yuill got casted as Corin in "As You Like It" thanks to having composed "Swan Song".