In October 2003 Grieve went to England to play the role of Gaston in "Beauty & The Beast", and has since performed in the London premiere of "Europe" by Australian playwright Michael Gow at the Finborough Theatre, and in a showcase of the new musical "Paradise by the Dashboard Lights". He toured the UK in a new stage production of "Dial M For Murder" by Frederick Knott. He appeared in the lead role of Frederick Winterbourne in "Daisy Miller", directed by Christopher Morahan.