Gridlock

The Doctor takes Martha to New Earth, in the far future, only to find that an entire city has become a deadly trap.

Guest Stars

Bridget TurnerAlice

Ardal O'HanlonBrannigan

Lenora CrichlowCheen

Jennifer HennessyValerie

Anna HopeNovice Hame

Travis OliverMilo

Georgine AndersonMay

Simon PearsallWhitey

Daisy LewisJavit

Nicholas BoultonBusinessman

Erika MacleodSally Calypso

Judy NormanMa

Graham PaddenPa

Lucy DavenportPale Woman

Tom EddenPharmacist #1

Natasha WilliamsPharmacist #2

Gayle Telfer StevensPharmacist #3

Struan RodgerFace of Boe