Doctor Who Flux: 14 Best Easter Eggs You Might've Missed

11. The Hopper Virus

Doctor Who The Halloween Apocalypse Hopper Virus
BBC

It's safe to say that nobody expected The Halloween Apocalypse to contain a reference to Orphan 55, and yet... it does.

When the Doctor boards Karvanista's ship, she empties her pockets and out comes a crisp packet, which contains "leftover Hopper virus particles".

The Hopper virus was first seen in Orphan 55: it infects Ryan Sinclair when he interacts with a vending machine, but the Doctor cures him by luring it into a crisp packet - the exact same crisp packet she pulls from her pocket.

Doctor Who Orphan 55 Hopper Virus
BBC

Hey Chris, thanks for reminding us about this trainwreck of an episode!

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Danny has been with WhatCulture for over ten years, and is currently Doctor Who Editor and WhoCulture Channel Manager, overseeing all of WhatCulture's Whoniverse coverage. In 2022, he took charge of WhoCulture and has grown it into the biggest Doctor Who channel on YouTube, and one of the biggest Doctor Who communities on the web full-stop. He has been writing and video editing since his early teens, and first got a taste for content creation after making his own Doctor Who trailers, off the back of a burning obsession with the Matt Smith era of the show. Like many his age, he first got into Doctor Who with the 2005 revival, but has since gone back and fallen in love with the classic years too. If you need someone to recite every Doctor Who episode in order, or to give you a random factoid about the making of Gridlock, Danny is the person to ask!