Comenzó su actividad profesional publicando el especial Fanhunter USA con Planeta DeAgostini y Fanhunter: Barnacity by Gaslight con Fanhunter. En el ámbito de la animación, trabajó en storyboard, layouts, key layouts y key BG´s así como director y coordinador de diversos equipos de storyboard, layout y concept design.

Aunque ocasionalmente ha vuelto a tareas de storyboarder tanto para animación como para imagen real (Los Cronocrímenes), o de diseño de personajes y concept art para compañías como Wizards of the Coast, la mayor parte de su producción se dirige al mercado americano, en editoriales como DC Comics y sobre todo Marvel Comics. En Marvel ha dibujado a personajes como la nueva Nomad, la serie Young Allies, X-Men Legacy, Nova, Web Warriors, Tsum Tsum o Monsters Unleashed. También ha dibujado la serie D&D Forgotten Realms: Cutter, Angry Birds y Skylanders para IDW. Sus últimos trabajos para Marvel incluyen la serie Domino y la miniserie Gwenpool Strikes Back.

David Baldeón started his professional activity in 1999 with the Fanhunter: USA one shot, published in Spain by Planeta DeAgostini and Fanhunter: Barnacity by Gaslight (2000) for Fanhunter. In the animation field he has worked as a storyboarder, layout , key layout and key BG artist, and also as director and coordinator of several storyboard and concept design teams.

Although he has occasionally returned to storyboarding (Vigalondo’s 2007 Timecrimes), the majority of his body of work is in US comic books. For DC comics, he pencilled several issues of the Blue Beetle and Robin series (2007-2008). He has worked for Marvel Comics since 2009, in books like Nomad: Girl Without a World, Young Allies, X-Men Legacy, Scarlet Spider, Nova, Web Warriors, Tsum Tsum or Monsters Unleashed. He also pencilled IDW’s D&D Forgotten Realms: Cutter, Angry Birds comics and Skylanders comics. His latest work for Marvel includes Domino and the miniseries Gwenpool Strikes Back.