Smyth came to light as a singer at a young age; as a boy soprano he found himself in demand in many churches in Dublin.
As an actor and singer he appeared in productions ranging from Oklahoma!, Hello, Dolly!, Follies, Sweeney Todd to The Rocky Horror Show.
Drama work includes Glengarry Glen Ross at the Andrews Lane Theatre, Dublin, Sive and The Cuchulain Cycle.
[1] He trained in London with top voice coach Mary Hammond and Smyth's performance in the show brought much critical acclaim.
He has also appeared with Andy Williams and is also a frequent guest on The Lyrics Board game show also on RTÉ with Eurovision Song Contest winner Paul Harrington and Kyron Bourke.