Equally beloved at office boardrooms and toddler birthday parties, Colin the Caterpillar - a £7 swiss roll cake with white and milk chocolate and buttercream - was launched at an unsuspecting public by Marks and Spencer on 26th August, 1990.

At the product development stage, he was going to be a fish - even though fishcake is a TOTALLY different foodstuff. Luckily, the Colin we know and love made it to M&S shelves, where he has since sold more than 15 million units, and spawned dozens of high street imitators. (And an infringement claim against Aldi.)

In this episode, Olly, Rebecca and Arion explain how Colin’s popularity coincided with the trend for ‘illusion cakes’; dig up the horrifying sweet/savoury pile-up that is Jane Asher’s ‘Mary Mary’ cake; and consider Colin’s enduring place in British popular culture...

Further Reading:

• ‘Colin the Caterpillar: A brief history’ (New Statesman, 2018): https://www.newstatesman.com/culture/food-drink/2018/12/colin-caterpillar-brief-history

• ‘This is the original M&S Colin the Caterpillar cake back in 1990’ (Good Housekeeping, 2020): https://www.goodhousekeeping.com/uk/food/a33631942/original-colin-the-caterpillar-cake-1990/

• ‘Colin v Cuthbert The Caterpillar: Can M&S Sue Aldi For Copyright Over A Cake?’ (Good Morning Britain, 2020): https://www.youtube.com/watch?v=6ZrjPL8p874

This episode first aired in 2021

Love the show? Support us! 

Join  🌴CLUB RETROSPECTORS🌴to DITCH THE ADS and get an additional full-length episode each SUNDAY… 

… Plus, get weekly bonus bits, and unlock over 100 bits of extra content. 

Join now with a free trial on Apple Podcasts or Patreon and support our show ❤️

The Retrospectors are Olly Mann, Rebecca Messina & Arion McNicoll, with Matt Hill.

Theme Music: Pass The Peas. Announcer: Bob Ravelli. Graphic Design: Terry Saunders. Edit Producer: Ollie Peart

Copyright: Rethink Audio / Olly Mann 2025.

Learn more about your ad choices. Visit podcastchoices.com/adchoices