Jemma Redgrave returns to Doctor Who and Aneurin Barnard joins the cast

UNIT returns! Jemma Redgrave returns as Kate Lethbridge-Stewart, and UNIT, the long-running organisation set on defending the Earth, returns in the next series of Doctor Who.

Aneurin Barnard also joins the series as the mysterious Roger ap Gwilliam.

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Doctor Who 60th Anniversary: Everything we know so far

There's a LOT happening in space and time as Doctor Who celebrates 60 years in 2023 - watch the teaser trailer below for a sneak peek and find out more here.