Jim is the banjo player for the Country Trio, a Muppet band that performed in variety show appearances in the mid and occasionally on The Muppet Show. Jim, and his fellow Trio members Frank, and Jerry, are based on their respective performers.
The character "Red" from Fraggle Rock. Looks like rockmelon coloured hair to me! I want the entire series on DVD to watch with my future kids - there are some good messages and lessons in the stories of Fraggle Rock to learn from.