A young musician who has a backyard clubhouse full of musical instruments. He is a blue mouse-like creature with short green hair, and he wears an orange sweater with an asterisk on the front. Jack has a very busy schedule, and at the beginning of each episode, his unseen mother mentions a new class or activity that he is attending. He is named after Jack Benny, the host of The Jack Benny Program.
Jack's best friend, an accordionist. She is a yellow mouse-like creature with curly purple hair and wears a red sweater with a heart symbol on the front. She is smart, attentive, and likes to find music in unexpected places. Her catchphrase is "What a day!", which she says at the end of each episode. She is named after Mary Livingstone from The Jack Benny Program.
Jack's drum-playing dog who is a gifted inventor. He is pink with green stripes and a green spot around his left eye. He created all of the contraptions in Jack's clubhouse, including the music video player, and operates them in each episode. He can only talk through "ruff" noises, but Jack understands him. He is named after Mel Blanc from The Jack Benny Program.
A barbershop quartet of four brothers who visit Jack's clubhouse every day to sing a short song. They are all nearly identical to each other: turquoise with stringy red hair, freckles, and matching striped sweaters. They are named after the Sportsmen Quartet from The Jack Benny Program.
Supporting[]
Image
Name
Description
Neighbors
Jack's neighbors are friendly puppet creatures who (for the most part) enjoy music. They do not frequently appear.
Earl
Earl is a speaking squirrel living next to Jack, Mary and Mel.
Bugs
The characters do not have specific names. They can produce music through their horn-shaped snouts. The insects do not have names and are not any specific species of bug.
