Action Man is........

[The Jerk]

.......... fifty this year........... did you have an action man..... what adventures did you get up to!

[Merritt]

For 'the greatest hero of them all' they could've put more thought in to his name.

Daniel Craig is... Spy Person.
Sylvester Stallone is... Boxing Guy.

I suppose at least he's not called Government Issue Joe.

[Merritt]

Or, perhaps, Acton Man. A man from Acton.

Called Clive.