Dr. Cockroach, Ph.D. (Voiced by Hugh Laurie) is a brilliant mad scientist with his result of an experiment going wrong in Monsters vs. Aliens. He can withstand being crushed, smashed, blown up & electrocuted as well as climb up walls & ceilings.
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Trivia[]
- Jeffrey will meet Dr. Cockroach in Jeffrey & Friends' Adventures of Monsters vs. Aliens.
- Dr. Cockroach will attend Jeffrey and Aqua's wedding in Key of Flaming Union.
- Dr. Cockroach will guest star in Jeffrey, Jaden & Friends' Storm Adventures of Stitch!: The Movie.