VIDEO: Sneak Peek - The Adventures Continue on Season 9 of DOCTOR WHO, Premiering 9/19

Having the time of their lives, the Doctor and Clara embark on reckless adventures in all of space and time in the 9th season of BBC AMERICA's DOCTOR WHO, premiering Saturday, September 19, 9:00pm ET. Get a first look below!

The hit time travel series returns with a two-parter, The Magician's Apprentice and The Witch's Familiar, written by lead writer and showrunner Steven Moffat and directed by Hettie Macdonald (director of award-winning DOCTOR WHO episode Blink with Carey Mulligan).

In Peter Capaldi's second season at the helm of the TARDIS, the series sees the Doctor and Clara Oswald (Jenna Coleman) going on a journey that takes them to deadly alien planets, creepy underwater bases, Viking villages, a global Zygon uprising, and through hidden alien dens, to the very end of time itself.

Meeting monsters old and new, the Doctor will come face to face with Missy (Michelle Gomez), a city of Daleks, deadly mercenaries called the Mire, terrifying ghosts and more.

Previously announced and taking up a guest role in the new season will be Maisie Williams, having already achieved global success for her role as Arya Stark in Game of Thrones. Michelle Gomez (Missy) returns to plague the Doctor and Clara in the season opener, and UNIT are back with Jemma Redgrave (Kate Stewart) and Ingrid Oliver (Osgood) returning following their popular entrance last season. Also confirmed as guest cast in the new season are Reece Shearsmith, Rebecca Front, Rufus Hound, Paul Kaye, Elaine Tan, Neet Mohan, Bethany Black, Paul Courtenay Hyu, Joivan Wade and Sophie Stone.

The new season has been written by lead writer Steven Moffat, Toby Whithouse, Jamie Mathieson, Peter Harness, Mark Gatiss, and new writers to DOCTOR WHO - Sarah Dollard and Catherine Tregenna; directed by Hettie Macdonald, Daniel O'Hara, Ed Bazalgette, Daniel Nettheim, Justin Molotnikov, Rachel Talalay; and produced by Tracie Simpson, Derek Ritchie, Nikki Wilson and Peter Bennett. DOCTOR WHO is a BBC Cymru Wales production for BBC One, co-produced with BBC AMERICA.