Correctly pronounced YAN-toh by Welsh speakers. Not YAN-toe, definitely not Ee-yan-toe.The one thing I hate about Torchwood is their excessive mispronunciation of Welsh names. =(
TOH isn't necessarily the same as toe. For my Welsh family, the vowel in toh is somewhere between toe and tah, and it's a bit shorter than toe.I think I remember Eve Myles (Gwen Cooper) saying this correctly on Torchwood a few times (ie. Yan-toh). Gareth David Lloyd seems to round the o quite a bit more. Not sure what that says about the pronunciation, as they are both Welsh, but at least neither of them say ee-yan-toe.
The one thing I hate about Torchwood is their excessive mispronunciation of Welsh names. =(