100
Big Finish Productions audio drama
Series	Doctor Who
Release no.	100
Featuring	Sixth Doctor Evelyn Smythe
Written by	Jacqueline Rayner Robert Shearman Joseph Lidster Paul Cornell
Executive producer(s)	Nicholas Briggs Jason Haigh-Ellery
Production code	7CMC
Release date	September 2007

100 is a Big Finish Productions audio drama based on the long-running British science fiction television series Doctor Who. It consists of four one-part stories by different authors, rather than the usual multi-part serial, all involving the number 100 in some way. All episodes feature the Sixth Doctor as played by Colin Baker and Evelyn Smythe played by Maggie Stables.

• The Doctor — Colin Baker
• Evelyn Smythe — Maggie Stables

By Jacqueline Rayner

• This story is set in Rome in 100 BC and involves the parents of Julius Caesar.
• Gaius Julius Caesar — Will Thorp
• Aurelia — Lucy Paterson
• Midwife — Susan Brown

By Robert Shearman

• This story involves an abnormally prolonged life of Mozart.
• Mozart/Butler/Guest — John Sessions

By Joseph Lidster

• This story involves an unusual curse befalling an even more unusual family.
• Jacob – Will Thorp
• Old Jacob— Frank Finlay
• Talia — Martha Cope
• Mary – Susan Brown
• Julia – Lucy Paterson
• Patrick – Alex Mallinson

By Paul Cornell

• This story concerns the Doctor preventing an assassination attempt on himself.
• Assassin — Nicholas Briggs

In the final story, The Doctor visits various aspects in Big Finish's Doctor Who range. These include the Fifth Doctor with Peri and Erimem, the Seventh Doctor with Ace and Hex, the Eighth Doctor with Charley, C'rizz and Lucie, the Bernice Summerfield adventures, and the Unbound stories. The Doctor says he has already met his next incarnation, possibly a reference to The Sirens of Time.

Will Thorp also appeared in the 2006 television episodes The Impossible Planet and The Satan Pit as Toby Zed.

The Sixth Doctor and Evelyn break the fourth wall in episode 4, "100 Days of the Doctor"

• Big Finish Productions – 100