Biggerstaff, Sean (Oliver Wood)
C/O ICM
76 Oxford Street
London, W1N OAX
England

Branagh, Kenneth (Gilderoy Lockhart)
Kenneth Branagh C/O Fishmonger Films
Studios Road
Shepperton
Middlesex TW17 OQD
England

Coltrane, Robbie (Hagrid)
C/O CDA
19 Sydney Mews
London
SW36HL
United Kingdom

Columbus, Chris (Director)
Chris Columbus
847 N. Franklin Ave.
River Forest, IL. 60305
USA

Davis, Warwick (Gringotts Goblin & Prof. Flitwick)
E-mail: fan.mail@warwickdavis.co.uk
Paul Lyon-Maris (his agent)
C/O ICM Ltd.
Oxford House
76 Oxford Street
London W1N 0AX
England

Felton, Tom (Draco Malfoy)
E-mail: tom@tomfelton.com
Chris Columbus
C/O Warner Bros.
4000 Warner Blvd.
Burbank, CA 91522

Griffiths, Richard (Vernon Dursley)
Richard Griffiths
125 Gloucester Rd
London SW2 4TE
United Kingdom

Grint, Rupert
Rupert Grint
C/O Warner Bros.
4000 Warner Blvd.
Burbank, CA 91522

Richard Harris (Dumbledore)
Richard Harris
C/O William Morris Agency
1 Stratton Street
London
W1X6HB
United Kingdom

Hart, Ian (Prof. Quirrel)
Tel: 020 7344 1010 Peter Frasers & Dunlop
Drury House
34-43 Russell Street
London WC2B 5HA

Hurt, John (Mr. Ollivander)
John Hurt
C/O Incoming Mail
BBC Television Centre
Wood Lane
London W12 7RJ
England

Mayall, Rik (Peeves)
Rik Mayall
C/O Brunskill Management
Suite 8A
169 Queen's Gate,
London, SW7 5HE
England

Radcliffe, Daniel (Harry Potter)
Dandiel Radcliffe
C/O BBC
P.O. Box 1116
Belfast BT2 7AJ
United Kingdom

Rankin, Chris (Percy Weasley)
Chris Rankin C/O
Ken McReddie Ltd
91, Regents Street
London
W1R 7TB

Rickman, Alan (Prof. Snape)
C/O Creative Artists Agency
9830 Wilshire Blvd
Beverly Hills, CA 90212
USA

Smith, Maggie (Prof. McGonagall)
C/O ICM
76 Oxford Street
London W1N OAX
UK

Troyer, Verne (Griphook the Goblin)
Verne Troyer
18032-C Lenon Dr.
Yorba Linda, CA 92886
USA

Walters, Julie (Mrs. Weasley)
Julie Walters
C/O ICM
76 Oxford Street
London W1N 3HN
UK

Watson, Emma (Hermione Granger)
Emma Watson
C/O Warner Bros.
4000 Warner Blvd.
Burbank, CA 91522

Wright, Bonnie (Ginny Weasley)
Tel: 020 7344 1010
Bonne Wright
C/O Peter Frasers & Dunlop
Drury House
34-43 Russell Street
London WC2B 5HA

Need to contact a cast member that's not on this list? Try this:

Actor's Name
C/O Warner Bros.
4000 Warner Blvd.
Burbank, CA 91522