14 and 13. Guillermo Del Toro and Alfonso Cuaron - Quantum Of Solace (2008)
Known for their actions behind the camera, rather than in front of it, Mexican directors Del Toro and Cuaron, known between them for the Hellboy series, Pans Labyrinth, Children Of Men and Harry Potter And The Prisoner Of Azkaban, amongst other things, both consented to voice cameos in Quantum Of Solace as a favour to friend Marc Forster, who directed the film. Del Toro voices several roles, whilst Cuaron takes on the sole voice of a helicopter pilot.
12. Omid Djalili - The World Is Not Enough (1999)
Anglo-Iranian comedian Omid Djalili appeared in quite a few Hollywood blockbusters around the turn of the Millennium, with Gladiator, Notting Hill and The Mummy amongst them. In 1999s The World Is Not Enough, he plays a foreman at the factory of Robbie Coltranes gangster character, but his roles have been limited since, falling in tandem with his rise in popularity as a stand-up.