

6 minSeason 2 • Episode 39
LatestGophers are devouring the Winslow garden and Marmaduke is sent to scare them off. It turns out to be a bigger job than he imagines. Marmaduke tunnels through the entire neighborhood trying to catch them causing problems for everyone.
Heathcliff is an animated TV series that debuted on October 4, 1980. It was the first series based on the Heathcliff comic strip and was produced by Ruby-Spears Productions. It ran until September 18, 1982 with a total of 25 episodes, under two different names.
Acting
Mel Blanc's final major cat role—he gave Heathcliff actual personality.
Production
Ruby-Spears at peak Saturday morning factory output.
Trivia, insights & behind the scenes
Mel Blanc recorded Heathcliff while also doing Daffy Duck and Bugs Bunny—he allegedly kept the voices in different 'registers' mentally. The man had a throat of steel.
This series debuted the same month as The Empire Strikes Back and was promptly forgotten by history—yet it outlasted every 1980 cartoon except Smurfs in syndication. Sometimes mediocrity is immortal.