Cellbound (1955, animated short)

Cellbound is a 1955 cartoon short featuring Spike and directed by Tex Avery and Michael Lah. The story was by Heck Allen, and Paul Frees voiced all the characters.
Aftermath:
In a ironic twist of fate, the same year when the cartoon was released, Avery began his career in television at Cascade Studios, which Lah introduced him to, doing commercials for Raid and Kool-Aid (which the latter had Bugs Bunny and Cascade had no idea he created him). In 1977, the studio shutted down, and Avery began working at Hanna-Barbera, from where he worked until the literal day he died. Two programs he worked on were released posthumously, The Flintstone Comedy Show and The Kwicky Koala Show.