Buddy Sheffield filed the lawsuit in Los Angeles Superior Court on Thursday alleging breach of contract, breach of confidence, unfair competition and unjust enrichment.
Sheffield - who has written for The Smothers Brothers Show and The Dolly Parton Show - claims he pitched an idea for a television series called Rock and Roland to the Disney Channel in 2001.
According to the lawsuit, the story was about a junior high school student who lived a secret double life as a rock star. Sheffield claims Disney plagiarized the idea for their show Hannah Montana and is demanding a share of the revenue.
Disney bosses were unavailable for comment.
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