Nacho Bear is the ursine protagonist of his eponymous Wedgiesseries. Generally in the company of his friend and rival, a green raccoon, Nacho Bear pursues a particular nacho chip; even when there is a whole nacho bag, he always sticks to one chip. Despite his constant failure, he never gives up on his quest to acquire that one perfect chip.
Nacho Bear (along with Cat-22) makes a cameo appearance in The Talented Mr. Bixby episode, "The Substitute Bug Man," as a drawing on the bulletin board labeled "Oso Nacho." Mr. Bixby is evidently substituting in a Spanish class.