Leonardo
Leonardo (Archie) appears in 64 issues in grailworth's catalog, and was first published in 1988. First appearance: Teenage Mutant Ninja Turtles Adventures #1 (1988), cover dated 1988.
First appearance
Every appearance we value
Mighty Mutanimals (1991) 1 issue
Mighty Mutanimals (1992) 2 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.