Having trained in 3D design (specialising in silversmithing and jewellery), Yeowell began drawing comics purely for pleasure, with no particular intention to become a professional artist.
Having shown his portfolio to artist Bryan Talbot, he quickly found himself given work by Swiftsure (on the Lieutenant Fl'ff strip).
This was his first meeting with writer Grant Morrison, who was writing the California Crew strip ("loosely based on the A-Team") Yeowell was drawing.
Yeowell was headhunted by American comics companies and has worked on Batman, The Fantastic Four, The Invisibles,[2] JSA and Starman.
[citation needed] The concentration on human features means that Yeowell's work is held to suit superhero, science fiction and historical genres equally.