You can contact Sophia Myles by writing through her agent. This is the address:

Sophia Myles
c/o Christian Hodell
Fifth Floor, 66-68 Margaret Street
London
W1W 8SR
United Kingdom

Sophia Myles currently resides in Los Angeles due to her work in the television series Moonlight. You can therefore also send your letter to her agent in the US:

Sophia Myles
c/o Dar Rollins
ICM
10250 Constellation Boulevard
Los Angeles
CA 90067
USA

Note

Judging by the amount of visitors this site has I suppose Sophia Myles is getting more and more fanmail. Therefore, if you wish to receive an answer or an autograph make sure you send a self-adressed and sufficiently stamped envelope along. If you live outside of the UK make sure to enclose International Reply Coupons. For more help concerning writing a celebrity visit FanMail. I’m sure Sophia Myles is appreciating us following these guidelines

I myself have written Sophia through her agent in London in November 2003. I also sent some pictures along, asking for her signature. On December 24, 2003 I received all of them plus an agency picture back. I was so happy! So, I know for sure, that the London address works… Good luck!