You can contact Daniel by sending a letter to Artists Rights Group in the UK:
Daniel Radcliffe
c/o ARG Talent
4A Exmoor Street
London W10 6BD
UK
His US agency is United Talent Agency (UTA).
In August 2013 the address changed from 4 Great Portland Street to 4A Exmoor Street.
Daniel unfortunately does not have the time to reply to all the letters personally so his agency sends out a pre-printed photo instead. You should receive it within 2-3 months.
PR representation
He is represented by Organic Marketing in the UK (they acquired Romley Davies) and Serge PR (formerly Scott Boute Publicity), now a branch of Platform PR, in the US. Serge PR also launched his website.
Photos
Below a list of photos including the most recent one. If you did receive a new one or have one which isn't added below please contact me so I can update the list.
2002 Jaap Buitendijk
2002 by Peter Mountain
2003 by Peter Mountain
2003 by unknown
2004 by Adrian Green
2004 Christmas photo (Goblet of Fire set) by unknown more info
2005 by Dennys Ilic (via danradcliffe.com)
2006 by Emma Hardy
2008 by Jaap Buitendijk
2010 by Dennys Ilic
2011 by Ethan Hill via Broadhurst Theater, NY (H2$)
2011 by unknown
2012 by Warwick Saint
2014 by Tyler Udall via Cort Theater, NY (The Cripple of Inishmaan)
2015 by Matthew Lyn - no photo of the pre-print
2017 by Matthew Lyn - currently no photo
2018 Michael Schwartz - no photo of the pre-print
Newsletters
Daniel has been sending out newsletters during the years, until 2010. Here are some newsletters from years ago. If you have one that isn't added below please let me know.
2003 February
2003 June
2003 December
2004 January
2004 March
2004 June
2004 July
2004 October
2005 January
2005 February
2005 May
2005 August
2005 December
2006 April
2006 June
2007 January
2007 June