Classic Who S23 • Serial 1 · (4 episodes) The Mysterious Planet Sets: Doctor Who (1963-1996) Sixth Doctor 72% 555 votes Watch on iPlayer Watch on BritBox Novelisation: "Doctor Who: The Mysterious Planet" TARDIS Wiki Share this page {{ shareFeedback }} Copy link {{ copyFeedback }} Overview Reviews Transcript Quotes Quotes Spoiler warning! “Planets come and go. Stars perish. Matter disperses, coalesces, forms into other patterns, other worlds. Nothing can be eternal.” — Sixth Doctor, The Mysterious Planet Login to track and rate! Signal Strength: 50% What's this? Characters & Enemies Sixth Doctor Darkel Sabalom Glitz The Valeyard Also featuring: Sabalom Glitz Dibber Drathro Available in: The Trial of a Time Lord DVD Average. Rating: 62% The Collection – Season 23 Blu-Ray Average. Rating: 65%