In his first appearance since the classic/W-7 Arts epoch, Cool Cat also had various cameos and/or walk-on roles in the '90s Warner production, The Sylvester & Tweety Mysteries, in one form or another. For example, in the form of a poster, as a passer-by in street scenes, etc. However, these never went noticed by the main cast, with Tweety even commenting once "We just had to get him into this show"