Peter joins the cast of Dr Who for their Christmas Special 2024 as guest star Basil Flockhart alongside Ncuti Gatwa and Nicola Coughlan.
In this years Christmas Special, titled Joy To The World, Joy opens a secret doorway to the Time Hotel and discovers danger, dinosaurs and the Doctor. But a deadly plan is unfolding across the earth, just in time for Christmas.
The episode can be streamed on BBC iPlayer.