Ruth Leon

Heathcliff

Marvel - 18 issues

The Flintstones

Archie - 7 issues

Heathcliff's Funhouse

Marvel - 6 issues

The Jetsons

Archie - 5 issues

Count Duckula

Marvel - 3 issues

Star Comics Magazine

Marvel - 2 issues

Scooby-Doo

Archie - 2 issues

Alf

Bastei Verlag - 2 issues

ALF

Marvel - 2 issues

Camp Candy

Marvel - 2 issues

Hanna-Barbera All-Stars

Archie - 2 issues

Hanna-Barbera Presents

Archie - 1 issue

Harvey Hits

Harvey - 1 issue

Heathcliff: The Big Sport

Tor Books - 1 issue

Hot Stuff Creepy Caves

Harvey - 1 issue

Supplementi a Il Giornalino

Edizioni San Paolo - 1 issue

Alvin & the Chipmunks

Harvey - 1 issue

Spooky Spooktown

Harvey - 1 issue

Heathcliff Annual

Marvel - 1 issue

ALF Comics Magazine

Marvel - 1 issue

The Flintstones Doublevision

Harvey - 1 issue

Hot Stuff Sizzlers

Harvey - 1 issue

Heathcliff: Cat and Mouse Games

Tor Books - 1 issue

Casper

Marvel - 1 issue

Yogi Bear

Archie - 1 issue

Barbie

Marvel - 1 issue