Reports have suggested that at least four actors are testing for the role of James Bond, with screen tests being held last weekend to determine who will play one of the most coveted parts in cinema.

But while reports in Deadline and The Hollywood Reporter named three of the actors allegedly testing – Jack Lowden, Callum Turner and Josh O'Connor – the name of the fourth actor has not been confirmed.

Jack Lowden and Callum Turner are both rumoured to have screen tested already (Getty Images/iStock)

Jack Lowden and Callum Turner are both rumoured to have screen tested already (Getty Images/iStock)

That has led to much speculation about who that mystery fourth man is. To try and get to the bottom of it, we've gathered together a list of possible suspects – as well as at least two major British names who've already been ruled out.