His first three Disney comics were illustrated by Don Rosa and published in 1988: they are the Scrooge McDuck story The Paper Chase, the Donald Duck story Rocket Reverie and the Scrooge McDuck story Fiscal Fitness.[2] Subsequent stories written by Leach featured artwork by various artists, including William Van Horn who drew three of them.[2] All of Leach's comics take place in the Donald Duck universe.[2] Leach wrote several articles about Disney comics, and is credited for the ideas of several covers.[2]
He has edited several manga titles for VIZ Media. Partial list: Red River, Arata: The Legend, D.Gray-man, Istuwaribito, O-Parts Hunter, Cheeky Angel, Uzumaki.
He is married to Susan Daigle-Leach, who has also worked for Disney-licensed comics as colorist and letterist.[4]
