Peter Quilter is recognized to be one of the most widely produced young playwrights in the world. His work has been produced in thirty-six countries and translated into twenty-three languages. His plays have been presented in major theatres in cities as diverse as Sydney, Amsterdam, Berlin, Johannesburg, Warsaw, Chicago, Caracas, Helsinki, Budapest, Rome Montreal, Madrid, Rio de Janeiro and London. He began his career in 1999 with the pop industry comedy BoyBand which played a summer season at the Gielgud Theatre in London's West End before travelling to Holland, Denmark, Poland, Slovakia, Estonia and South Africa. His work since then has ranged from female monologues (Just the Ticket) to farces (Curtain Up) musicals (The Canterville Ghost) and dramas (Celebrity). In addition to the worldwide success of End of the Rainbow, Peter has also enjoyed international acclaim for his comedy Glorious! (the True Story of Florence Foster Jenkins, the Worst Singer in the World). The show played a six-month run at London's Duchess Theatre in 2006 starring Maureen Lipman and was nominated for the Olivier Award for Best New Comedy. Glorious! has since played in over a hundred theatres across six continents.

Peter is also the writer of the popular and award winning 2009 comedy Duets - an evening comprised of four different plays, each performed in a tour de force by the same two actors. In 2011 he wrote two new plays - The Nightingales (a nostalgic musical based around a theatrical family in the 1950s) and The Morning After (a modern comedy set entirely in a bedroom).