The teenage girl who voices children's cartoon Dora The Explorer has launched a multi-million dollar lawsuit against US network Nickelodeon with her lawyer claiming she's been potentially duped out of tens of millions of dollars.

The New York Daily News reports that 14-year-old Caitlin Sanchez says she was exploited by the show's producers, who forced her to perform at hundreds of promotional events for free.

'Exploited' ... Dora The Explorer.

They have accused Nickelodeon and parent companies Viacom and MTV Networks of tricking her into signing "bizarre, impenetrable, unconscionable" contract and cutting her out of merchandising profits.

Sanchez, who has voiced the Spanish-speaking cartoon adventurer since 2007, was paid just $40 a day for the 100-plus promotional tours, her lawyer John Balestriere said.



The network recently let her let her go because of her age but the Sanchez camp insists that is not the reason for the legal action.