You can see their contributions below...
In total, over 600 pieces of art are up for grabs, making this year's National Doodle Day the biggest yet. The proceeds will go to supporting the 600,000 people living with epilepsy in the UK.
Other famous faces who have contributed to this year's National Doodle Day include Joanna Lumley, Stephen Fry and Sex Education star Connor Swindells. They are joined by hundreds of artists and illustrators, including Grayson Perry and Heartstopper illustrator Alice Oseman.
To find out more and browse the submissions on eBay, visit www.epilepsy.org.uk/doodle
This year's National Doodle Day also includes a Zoom masterclass with Paddington Bear illustrator R.W. Alley.
Michael King from Epilepsy Action says: "Each year we're amazed at the huge amount of support given to National Doodle Day by celebrities and amazing artists across the country. This year we have a record-breaking number of talented contributors who have donated incredible pieces of art to the auction. Whatever your interests, there really is something for everyone in this year's auction and I'd encourage anyone who would like to own an original piece of art to browse the collection.
"Bidding on a doodle will not only be the first step to building your very own bespoke art collection, but it will also help to raise vital funds to support people affected by epilepsy. Epilepsy affects people from all walks of life and a diagnosis can happen at any age. Money raised from National Doodle Day will help us to continue to be there for these people when they need us most, so do check out the auction and happy bidding!"