Music
Cast and Crew List: M
- Elin Manahan Thomas (cast in 2 episodes, e.g. Self in Doctor Who Prom (2013): Radio)
- Martin Maris (crew as Manager in Doctor Who Prom (2008))
- Jo Marks (crew in 4 episodes, e.g. Line Producer in Doctor Who Prom (2013): Radio)
- Marie McGonigle (cast in 4 episodes, e.g. Weeping Angel in Doctor Who Prom (2013): Radio)
- Neve McIntosh (cast in 2 episodes, e.g. Madame Vastra in Doctor Who Prom (2013): Radio)
- Ruari Mears (cast in 4 episodes, e.g. Cyberman in Doctor Who Prom (2013): Radio)
- Llinos Metcalf (crew as Vision Mixer in Doctor Who Prom (2008))
- Daisy Michie (cast in 2 episodes, e.g. Vampire Girl in Doctor Who Prom (2013): Radio)
- Wales Millennium Centre (crew as Acknowlegment in Doctor Who: A Celebration)
- Millennium FX (crew in 4 episodes, e.g. Masks by in Doctor Who Prom (2013): Radio)
- Steven Moffat (crew in 2 episodes, e.g. Writer in Doctor Who Prom (2013): Radio)
- Gabriella Montaraz (cast as Vampire Girl in Doctor Who Prom (2010))
- Ross Mullan (cast in 2 episodes, e.g. Ice Warrior in Doctor Who Prom (2013): Radio)