He then played the title role in the national tour of "Doctor Dolittle" and followed this with the role of Tevye in UK Productions' national tour of "Fiddler on the Roof". In the summer of 2006, he was a celebrity showjumper in the BBC's Sport Relief event "Only Fools on Horses", as well as appearing in "Doctors", "Heartbeat" and "Holby City". That autumn, Nicholas was attached to star in the British film "Cash and Curry", and that year he co-produced and starred in "Jekyll & Hyde" in a UK national tour.