← Previous Next → 9x23 The Time Monster, Episode Three 2/5 (1 vote) First Aired: Jun. 03, 1972 on BBC One Summary: England, the near future. Professor Thascales' TOMTIT project is nearing completion... but why is a simple matter transmitter causing disruption to the flow of time? And what exactly is Kronos, the time monster itself?

Main Characters in this Episode

• Jo Grant

Guest Stars Dr. Who played by Jon Pertwee The Master played by Roger Delgado Brigadier Lethbridge Stewart played by Nicholas Courtney Captain Mike Yates played by Richard Franklin (II) Sergeant Benton played by John Levene Dr. Ruth Ingram played by Wanda Moore Stuart Hyde played by Ian Collier Dr. Percival played by John Wyse UNIT Sergeant played by Simon Legree Krasis played by Donald Eccles Kronos played by Marc Boyle Dalios played by George Cormack Hippias played by Aidan Murphy Knight played by Greg Powell Roundhead Officer played by Dave Carter Roundhead Soldier played by Eric Kent More