Exavier Wardlaw claimed in legal filings that a character he created called Big Bad Lollipop was illegally copied as The Lollipop King in South Park's 'Imaginationland' trilogy of episodes, reports TMZ.
Lawyers for Wardlaw contend that his Lollipop Forest brand was hurt by The Lollipop King being present in scenes of graphic violence and sexual content in South Park.
Wardlaw is requesting that all footage of the Lollipop King character be removed from South Park's 'Imaginationland' instalments.
South Park's Stone and Parker have not commented on the suit.
The 'Imaginationland' trilogy originally aired on Comedy Central in 2007 and saw South Park spoofing popular characters such as Strawberry Shortcake, Snarf from Thundercats and Jason Vorhees.
Those three episodes were later made into a feature-length Imaginationland: The Movie, which was sold from March 2008.
Watch a clip from 'Imaginationland' below: