Aubrey de Grey
He is chief science officer at the SENS Research Foundation.
He is also:
Aubrey regulary talks about his work in transhumanist and biomedical circles. Here is one of his earlier talks from 2009:
In The Media
Aubrey de Grey was featured in an episode of Ultimate Worrier, whereby the host Jon Richardson brought up the worry that he might live forever along with a segment on cryonics.