Rish recently voiced a character, Jerome Caldehay, in a "Doctor Who" audio drama entitled "Might of the Stormy Sea" over at www.dwad.com.
We're not really conneseurs of audio dramas over at the Dunesteef (in fact, we can't even spell "coneseuer"), but J.W. Smith and company really do a bang-up job on this one. Check it out, and find out how awful Rish's English accent is.
Or, if you're in a generous mood, find out how convincing Rish's English accent is.