George (In the Forest of the Night)
From Tardis Wiki, the free Doctor Who reference
George was a security guard at the London Zoological Museum in 2016 when Clara Oswald, Danny Pink, and students from Coal Hill School stayed the night there. When he opened the door to let them out in the morning, he found it was jammed by the trees which had sprung up overnight. (TV: In the Forest of the Night)
