10 Doctor Who Voice Talents You've Never Even Noticed
4. John Sessions (Gus)
The mysterious Gus had been trying to get the Doctor on the Orient Express - the space edition - for quite some time and the Twelfth Doctor finally gave in and went to have a look at it earlier this year (in an episode aptly titled Mummy on the Orient Express, no less - the clue was in the title, really). This computer system was voiced brilliantly by yet another comedian, John Sessions, who has some serious acting chops with a host of stage roles, as well as frequent guest appearances on shows such as QI and Who's Line is it Anyway under his belt. This wasn't his first foray into Doctor Who, either. He has previously lent his voice to various Big Finish audio adventures alongside the Sixth Doctor, notably playing Mozart in 2007's My Own Private Wolfgang.