Jack B. Nimble is a self-centered boy from Goldie & Bear. Jack started a club with only "Jacks", he kept Bear from seeing Goldie and many of the other members of his club from seeing their own friends and family. He considered the middle name "B" to stand for best. He is quite slick and very popular for it. He is well known for jumping over candlesticks.
- In Alice and Pinocchio and JoJo & Dumbo he is played by Lampwick.
- In June And Snoopy he is played by Young Ronno.
- In Melody & Bambi he is played by Sid Phillips.
- In Annie And Pudge he is played by Shorty.
- In Lulubelle and Roo he is played by Scamp.
- In Alice & Boots he is played by Scar Snout