Christopher is the Artistic Director at the Gate Theatre and formerly an Associate Director at the Bush Theatre.  
 
Credits at the Gate include:  Diary of a Madman (also Traverse Theatre), The Iphigenia Quartet, The Christians (also Traverse Theatre, winner: Fringe First), Grounded (also Traverse Theatre, Studio Theatre Washington DC, national and international tour; winner: Fringe First, Best Production – Off West End Awards) Image of an Unknown Young Woman (winner: Best Production, Off West End Awards), The Edge of Our Bodies, Trojan Women, Purple Heart, The Prophet, Wittenburg.

Other theatre credits include: Twelve Angry Men (Birmingham Rep/West End), Sixty-Six Books, In the Beginning (Bush Theatre/Westminster Abbey); A Safe Harbour for Elizabeth Bishop (Southbank Centre); Grace, Pressure Drop (On Theatre); Deep Cut (Sherman Cymru/National Tour); Monsters, Notes from Underground (Arcola); A Number (Salisbury Playhouse). Short Films include: The Taming of the Shrew/Two Gentleman of Verona (Globe Theatre) Devil in the Detail (Royal Court/Guardian).

As a journalist he has written for: The Scotsman, The Financial Times, The Independent, The Guardian, The New Statesman and Prospect Magazine. He is the co-editor of three books: Conversations on Religion, Conversations on Truth (Continuum) and Identity and Identification (Black Dog).