Cockroach
A cockroach was an insect native to Earth. Mexico was particularly full of cockroaches — "more than you could have possibly imagined." (PROSE: The Left-Handed Hummingbird [+]Loading...["The Left-Handed Hummingbird (novel)"]) It was said of cockroaches that, where there's one, there's a hundred. (PROSE: Timewyrm: Genesys [+]Loading...["Timewyrm: Genesys (novel)"])
The sanatorium at Glenwood Springs, Colorado was infested with cockroaches; Doc Holliday would pass the time shooting at them. (PROSE: The Gunfighters [+]Loading...["The Gunfighters (novelisation)"])
According to Sgt John Benton, the Blatherians resembled giant cockroaches. (AUDIO: Council of War [+]Loading...["Council of War (audio story)"])
In 1982, a nuclear bunker in England was attacked by giant cockroaches. (AUDIO: Day of the Cockroach [+]Loading...["Day of the Cockroach (audio story)"])
The Eighth Doctor once compared the Daleks to cockroaches: "no matter how many you kill, there always seem to be more." (PROSE: Legacy of the Daleks [+]Loading...["Legacy of the Daleks (novel)"])
Cockroaches were believed to be able to survive a nuclear war. The Eighth Doctor had been to planets where that had happened. (PROSE: The Gallifrey Chronicles [+]Loading...["The Gallifrey Chronicles (novel)"])
Cockroaches were still around in Bernice Summerfield's native time. (PROSE: Birthright [+]Loading...["Birthright (novel)"])
In 2593, Miss Diane Schirf, a passenger on the Titanian Queen, died when she choked on a swarm of cockroaches that attempted to burrow down her throat. (PROSE: Ship of Fools [+]Loading...["Ship of Fools (novel)"])
An Earth-like planet was home to large cockroach-like creatures. The sons of Grekk, who also lived there, viewed them and all the other intelligent life forms on the planet as vermin, and had vowed to exterminate them all. One of the cockroaches was held prisoner in the Pit, where he helped the First Doctor engineer an escape, and later restrained Deemon. (PROSE: The Sons of Grekk [+]Loading...["The Sons of Grekk (short story)"])
Raj Kahnu created mechanical suits that resembled cockroaches on Miasimia Goria. (AUDIO: Planet of the Rani [+]Loading...["Planet of the Rani (audio story)"])
When Baano, Lexi and Yvette danced on Sagius Minor, their accommodation had cockroaches. (AUDIO: Square One [+]Loading...["Square One (Gallifrey audio story)"])
Behind the scenes
In non-valid sources
In AUDIO: Revolting Farmers [+]Loading...["Revolting Farmers (audio story)"], an episode of Dead Ringers, the cockroaches have survived to the year 348309, and decided to wake Donald Trump from cryogenic suspension. In this timeline, Trump's seventh term as US president had ended in nuclear war. He named one cockroach Vladimir and another Elon, as he claims they remind him of the "old days".
When the Fifteenth Doctor and Ruby Sunday land the TARDIS in 348309, the Doctor explains that "all trace of humanity" has been extinguished. Donald Trump is all that remains, and says that he always hated humanity.
