Mel Blanc

Much to his dismay, Iggy and Marcy enter Heathcliff in a show against pedigree cats. He uses his less-than-scrupulous best to win the show and impress Sonja. / Hector is being forced by a big dog to perform as a stand-up comic at a Big Dog Comedy Show. Riff Raff brings in the world's worst cat comic to empty the room so Hector can be rescued.

When the local policeman warns Heathcliff that any more of his pranks will land him in jail for life, our little monster decides he'd better reform. And when a new cat gang moves into town to terrorize the neighborhood, Heathcliff is forced to stand passively by and let them take over his territory. But it isn't long before the policeman is back knocking on Heathcliff's door; only this time he's come to ask Heathcliff's help. Heathcliff can do...

A mind mannered cat named Henry wanders into the neighborhood who looks exactly like Heathcliff. When Spike thinks he has beaten up Heathcliff, Heathcliff catches on and joins forces with Henry to make Spike look like a fool. / Riff Raff and the Catillac Cats go camping in the woods and meet Big Foot who threatens their camp. They try to catch him for fame and fortune. In the end Big Foot gets away, but upon overhearing the boys tell their disappointment...

Heathcliff become curious about his lineage and dreams about what his ancestors might have been like. We follow the escapades of historical Heathcliff in the Wild West, merry old England, and ancient Rome until Iggy calls to his cat and wakes him up / Bush is about to lose his night job as a night guard of the candy factory because somebody keeps stealing chocolate. Riff Raff offers to help catch the crooks, which he does with the help of his friends....

Heathcliff suffers a nasty bang on the head, which renders the "Devil Cat" side of his personality stunned and permits the "Angel Cat" side to take over. Suddenly Heathcliff is good as gold and begins performing numerous acts of kindness toward Spike. Spike in confused, but certainly willing to take advantage of the situation. He even puts on a show for the other animals to demonstrate his new ability to make Heathcliff do his bidding. However,...

Iggy brings a white mouse home from biology class who is quickly in a scuffle with Heathcliff. Grandpa calls in a Rodent-Removing-Robot who eventually wins a spectacular match of wit and trickery during which the entire Nutmeg house is town down to the ground. Heathcliff then saves the day by reprogramming the robot to rebuild the house at record speed. / When Hector finds a map to the Lost City of Catlantis, the Catillac Cats transform their car...

There's a new arrival in the neighborhood. A highbrow English couple, and their equally-arched cat - Reginald. From the start, Reginald and Heathcliff don't see eye-to-eye. And Heathcliff's anger reaches the boiling point when Reginald steals Sonja away, taking her on a date. Heathcliff trails them, with constant unfortunate results - for Heathcliff. Still, Heathcliff's impressed when Reginald has the fortitude to admit Sonja's really Heathcliff's...

The nutmegs are snowed in and Heathcliff has cabin fever. He accidentally locks himself out in the snow, and while outside, helps police apprehend the dangerous Ski-Mask Fugitive.

A big, muscle-bound cat named Pecs tries to take Sonja away from Heathcliff, so he starts working out in order to beat Pecs at his own weightlifting game. Unfortunately, the manager of the gym is in cahoots with Pecs, and throws Heathcliff every possible curve. Heathcliff catches on, and throws the curves right back. Sonja is his in the end. / Riff Raff sees a picture of a cat that looks like Mungo in the paper for which a reward is offered. The...

Heathcliff is romping through the fish market, the fish monger in pursuit, when he comes face to face with the skeleton of the jaws of a shark. The shock creates a state of amnesia for Heathcliff. He wanders aimlessly about town, trying to remember who he is. The alley cats and Spike take full advantage of the situation, telling Heathcliff he's their butler. Eventually, Heathcliff wanders to a mission for down and out pets. Iggy, broken-hearted,...