10 Cameos That Must Happen In 2015's Biggest Movies

8. Robert Vaughn & David McCallum - The Man From U.N.C.L.E.

The Man from U.N.C.L.E. was one of the biggest television hits of the 1960s and this year it gets its first big budget film adaptation. Robert Vaughn and David McCallum portrayed troubleshooting secret agents for the United Network Command for Law and Enforcement, with Vaughn playing American Napoleon Solo and McCallum playing Russian Georgian Illya Kuryakin. Those roles will be played by Henry Cavill and Armie Hammer respectively in this summer's updated big screen version, but it would be very cool to see the original duo in cameo roles, perhaps as some kind of mentors or bigwigs in the U.N.C.L.E. organisation. Vaughn is 82 and McCallum is 81, but both men are still very much active, with Vaughn having appeared in British soap Coronation Street as recently as 2012 and McCallum having had a recurring voice role in the Ben 10: Omniverse animated series since 2013.