Character: Sheriff Isaac
Guest Star: A Town Called Mercy
Ben appeared in episode three of season seven of Doctor Who titled A Town Called Mercy, a 'wild west' theme which was shot in Spain and the UK.
A mercenary cyborg bent on destroying 'the doctors' descends on a town called Mercy. Sheriff Isaac is protecting the doctor that the cyborg is after. Things get complicated when The Doctor, Amy and Rory show up in Mercy.
Saul Metzstein directed the episode written by Toby Whithouse (Doctor Who, Torchwood, Being Human UK).
Doctor Who season stars Matt Smith as The Doctor, Karen Gillan as Amy Pond and Arthur Durvill as Rory Williams, The Doctor's current companions.
You can check out HD trailer clip from Doctor Who episode A Town Called Mercy on youTube for as long as they keep it up.