The disc jockey wife of "Rookie of the Year" star Thomas Ian Nicholas is pulling the plug on their marriage ... because she just filed for divorce.
DJ Colette, a house DJ and vocalist, filed divorce docs Thursday after more than 12 years of marriage.
Thomas, who was a child actor when he played Chicago Cubs fireballer Henry Rowengartner in the 1993 sports flick, and Colette tied the knot way back in January 2007 and they have two minor children together, a son and a daughter.
According to the docs, obtained by TMZ, Colette lists the date of separation as Sept.