^I was aware of most of that, but I haven't actually seen those films, so knowing that doesn't help me. (Didn't he play Tony Blair twice?)
As well as playing Bliar (sic) 3 times (as Sci
pointed out), he's also played football manager Brian Clough in The Damned United and David Frost in Frost/ Nixon (both were written by Peter Morgan, who wrote the Bliar movies). He's also played Kenneth Williams of Carry On movie fame, or infamy (infamy, they've all got it in for me... Sorry). When you consider how effective he was at playing all 4 characters and when you consider what a disparate bunch they are/ were, it gives you an idea of his range.