It might be a fun surprise. I just know that like with all WB projects, I should not expect every Looney Tunes character to appear since this is usually a decision on behalf of the creators/writers, and not as much on the executives since this is targeted for a preschool audience. Sam, Granny, and Elmer, I don’t see them fit within the show’s aesthetic.Admittedly, it seems unlikely that we'll see any of the human Looney Tunes characters on BBB. The population of Looneyberg seems to consist mainly of animals. However, there's been no official statement from Warner Bros. that Sam, Elmer or Granny definitely won't appear, and we're only about 18 episodes in, so you never know.