Brian Cox

Physicist, University of Manchester / CERN

From Wikipedia:

Brian Edward Cox, is a British particle physicist, a Royal Society University Research Fellow, PPARC Advanced Fellow and Professor at the University of Manchester. He is a member of the High Energy Physics group at the University of Manchester, and works on the ATLAS experiment at the Large Hadron Collider (LHC) at CERN, near Geneva, Switzerland. He is working on the R&D project of the FP420 experiment in an international collaboration to upgrade the ATLAS and the CMS experiment.

He is best known to the public as the presenter of a number of science programmes for the BBC.