All of the Peanuts characters actually get onscreen credit!
During the closing credits, not only are the crew members' names seen, but the crew members themselves are also seen! The images are seen one person at a time corresponding with whatever name appears on the screen.
At the end of the opening credits, when Snoopy plays "vulture" sitting on a tree, he slips and crashes on the "Directed by Bill Melendez" credit, which dashes into scattered black text below.
The movie's title, "A Boy Named Charlie Brown," is shown in separate words, shot-by-shot ("A" "Boy" "Named" "Charlie Brown" in colorful text), against a black background. Charlie Brown himself appears in the next shot, with his clothes' colors inverted (with the black background), and they fade to their normal color once the background changes to yellow.