
Barry Leopold Letts (26 March 1925 – 9 October 2009) was an English actor, television director, writer and producer, best known for being the producer of Doctor Who from 1969 to 1974.
Born in Leicester, he worked as an actor in theatre, films and television before retiring in his early forties and becoming a television director. He then became the producer of the BBC science fiction series Doctor Who for five years, overseeing almost the entirety of Jon Pertwee's tenure as the Third Doctor and casting Tom Baker as the Fourth Doctor. He produced or directed many of the BBC's Sunday Classic drama serials from 1976 to 1986, and returned to Doctor Who in 1980 to be the executive producer for its eighteenth season.

Reach for the Sky
1956 · as Tommy

The Cruel Sea
1953 · as Raikes

Hello Sailor!
2008

Scott of the Antarctic
1948 · as Apsley Cherry-Garrard

Doctor Who: Inferno
1970 · as Loudspeaker Voice

The Worst Journey in the World
2007 · as Narrator

A Boy, a Girl and a Bike
1949 · as Syd

Frieda
1947 · as Jim Merrick

San Demetrio London
1943 · as Apprentice John Jones - M.V. San Demetrio

The Doctor's Moriarty
2011 · as Self

30 Years in the TARDIS
1993 · as Himself

Dial M for Murder
1962 · as Max Halliday

Terror Nation: Terry Nation and Doctor Who
2007 · as Self

Exodus
2007 · as Professor Marcus

The Story of Doctor Who
2003

Where on Earth Is Katy Manning?
1998

Terrance Dicks: Fact & Fiction
2005

To the Public Danger
1948 · as Fred Lane