The Mutant Phase

The Mutant Phase
Album cover
Big Finish Productions audio drama
SeriesDoctor Who
Release no.15
FeaturingFifth Doctor
Nyssa
Written byNicholas Briggs
Directed byNicholas Briggs
Produced byGary Russell
Jason Haigh-Ellery
Executive producer(s)Jacqueline Rayner
Production code6CC
Length2 hrs, 1 min
Release dateDecember 2000
Preceded byThe Holy Terror
Followed byStorm Warning

The Mutant Phase is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It forms the third serial in the Dalek Empire arc, following on from events in The Genocide Machine and The Apocalypse Element. The arc concludes in The Time of the Daleks. This audio drama is based on an earlier Audio Visuals story of the same name.

A director's cut of the first episode was included with the Doctor Who Magazine bonus CD story Cuddlesome.