Jennifer Hennessy played Valerie Brannigan in the Doctor Who television story Gridlock, and returned to the show exactly ten years and one day later, to play Moira in The Pilot and Extremis.
In between those two appearances, Hennessy worked again with Russell T Davies and Phil Ford on the show Wizards vs Aliens, appearing in episodes of the first two series of the show broadcast in 2012 and 2013.