- Hannibal was fired from Daniel Boone during the show's second season after it took him 32 takes to do a scene correctly.
- When actor Dan Duryea guest starred on an episode of Daniel Boone he reportedly threatened to take Hannibal home and cook him for dinner after the two got into an argument on the set.
- Hannibal was once hired to portray a talking goose on an episode of Mr. Ed but got fired when he defecated in Mr. Ed's feedbag.
- In 1965, Hannibal received a Golden Globe for Best Animal Actor in a TV series. His competition that year included Arnold Ziffel, Lassie, and the dog from Petticoat Junction.
- Hannibal was suspended from Daniel Boone during the show's first season for temperamental behavior on the set but a massive letter writing campaign by the TV viewing public led to his re-instatement.
- Hannibal reportedly had a torrid, back street love affair with Daisy Duck, long-time love of Donald Duck.
- Hannibal once roomed with future Green Acres star Arnold Ziffel during the years in which they were struggling actors in Hollywood.
- Hannibal got his first show biz break when he appeared as one of Elly Mae's "critters" on The Beverly Hillbillies.
- Co-star Albert Salmi always referred to Hannibal as "that damn goose."
- Daniel Boone co-star Veronica Cartwright referred to Hannibal as a "nasty goose" in the upcoming DVD release for the show.
