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Thicker Than Water
Big Finish Productions audio drama
Series	Doctor Who
Release no.	73
Featuring	Sixth Doctor Mel Bush Evelyn Smythe
Written by	Paul Sutton
Directed by	Edward Salt
Produced by	Gary Russell Jason Haigh-Ellery
Executive producer(s)	none listed
Production code	7CU
Length	1 hr 37 mins
Release date	September 2005
Preceded by	Evelyn:  after Industrial Evolution Mel:  Catch-1782
Followed by	The Wishing Beast & The Vanity Box

Thicker Than Water is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It is a sequel to the earlier audio play Arrangements for War.

It is three years since the Sixth Doctor helped repel the Killoran invasion of Világ, and he brings a new friend, Mel, to meet an old one. Evelyn Smythe, his former companion is now married to Principal Triumvir Rossiter. But Evelyn has made political enemies, among them her own stepdaughter Sofia, and the reunion takes a deadly turn when Evelyn and Mel are kidnapped.

• The Doctor — Colin Baker
• Evelyn Smythe — Maggie Stables
• Mel — Bonnie Langford
• Principal Triumvir Rossiter — Gabriel Woolf
• Dr Sofia Rossiter — Rachel Pickup
• Dr Andrew Szabó — Patrick Romer
• Dr Sebastian Lawrence — Simon Watts
• Jenner — Matt Dineen
• TV Interviewer — James Parsons

• This story revisits the world Világ, first heard in Arrangements for War.
• This story features an uncredited appearance by Sylvester McCoy as the Seventh Doctor.
• It is revealed in this story that Hex, who is a companion of the Seventh Doctor, is the son of Cassie from Project: Twilight and Project: Lazarus. The Doctor discovered this in The Harvest.
• Evelyn may recognize the Seventh Doctor as she previously watched him from afar in The 100 Days of the Doctor. They properly meet again in A Death in the Family.

• Big Finish Productions – Thicker than Water