Harry Potter star Matthew Lewis is heading onto the London stage in a new played called Unfaithful.

The actor, known to millions as Neville Longbottom, will appear in the play about two couples: one in their 20s, the other in their 50s.

Lewis will star alongside Ruta Gedmintas, Niamh Cusack and Sean Campion.

The play, which will run from August 26 at the off-West End theatre Found111 (the old Central St Martins School of Art in Soho).

Tickets are on sale now via the theatre’s website.