Mr. Bobo is a character that appears in the Adventures of Sonic the Hedgehog television series. He was Dr. Robotnik's beloved pet cockroach. He has never appeared in person, although a picture of him is seen in the episode. Robotnik keeps a photograph of Mr. Bobo and misses him a great deal, becoming teary-eyed whenever he thinks about him.
Dr. Robotnik keeps a photograph of Mr. Bobo and describes him as being "A villain's best friend; brave, trustworthy, loyal and always willing to share his lunch."
- Mr. Bobo's name is a reference to the Spanish, Portuguese and Filipino slang word of the same name, meaning "stupid". It also refers to the mindsets of Scratch and Grounder.