The Grownup who hands Peppermint Patty her baseball hat at the game who says: "Here's your cap, kid" is the producer, Lee Mendelson
This special includes the first animated appearance of two minor Peanuts characters, Eudora and Truffles. Both debuted in the daily Peanuts comic strip in the 1970s, but did not appear in any animated programs until this one.
Although the special was first released in 1982, it is copyrighted 1981 in the credits, meaning it was produced that year.