Wikipedia does not give anything away and nothing else seems too.
So this is my take on George Galloway's sidekick and gofer: he is clearly of mixed Pakistani birth, maybe his mother was a single parent. He speaks Arabic and he most probably is a muslim.
Many muslims who are converts, like to retain their western names. Maybe to cover up where their real loyalties lie, maybe because they can get along better without having to constantly explain away their islamic monickers.
However Anglo Kevin's name is, it is perfect for a cover up.
Harry's Place » Mahmoud Al-Zahar on the Jews