Sam Cox (born 1993 or 1994), known professionally as Mr Doodle, is an illustrator and artist from Kent, England.

Initially struggling, selling artworks for £1, he went on to gain social media attention, with c. 3 million followers on Instagram, and international recognition.

It has been reported that his artworks have sold for c. £1 million, and in 2020 he was positioned 5th worldwide for art auction sales of artists under 40.

[3][4][5][6] In 2022 it was reported he had covered "every inch" of his 6-bedroom Tenterden home, including the contents, with his style of doodles.

[3][7][8] The illustrations involved "two years, 900 litres of emulsion, 401 spray-paint cans, 286 bottles of drawing paint and 2,296 pen nibs", and was reported in the Guardian newspaper as "like stepping inside a migraine".