1) Ace the Bat-Hound
Much like Batman is only human, Ace is only a dog who Batman enlisted in a search to find his original owner in Batman #92 in 1955. Unfortunately, since Bruce Wayne had posted a bunch of “Is This Your Dog? Call Bruce Wayne!” fliers around Gotham (I’m paraphrasing), he felt he had to put a Bat-cowl on Ace’s head to protect both their identities while they searched for the German Shepherd’s owner, who eventually gave Ace to Bruce Wayne anyway and moved away. Although Ace wasn’t super enough to be in the first League of Super-Pets, he was still able to nab criminals himself and spy on villains—he even rescued Batman and Robin a few times. He wasn’t part of the second League either, as he’d been erased from continuity, only to be replaced by another dog named Titus (we’ll get there) until 2016, likely because Ace had a new origin that is just a huge bummer you don’t want or need to know; just rest assured Ace is now fine, BFFs with Titus, and completely devoted to Alfred. The reason he makes the list is that we already know he’s going to be in the League of Super-Pets movie.
