Tyler Courtney, Chris Windom, Logan Seavey and Zach Daum (all US) return this summer while Australians Kaidon Brown, Travis Mills and Robert Heard will all make the trip to Auckland.
The new addition is Zeb Wise, who is tipped to be the next big thing in dirt racing. Fifth in USAC Midget points, the teenager recorded three USAC Midget wins including the prestigious American BC39 at the Indianapolis Motor Speedway dirt track.
The international drivers will take on the best of the local drivers with Pickens returning from his controversial suspension to battle the world's best. Hayden Williams and Aaron Hodgson will continue their season-long battle as well.
"It is an awesome field," promoter Bill Buckley told the Herald. "These guys are a collection of literally the best midget racers in the world and they are all going to be hell-bent on winning at a place they enjoy racing.
"The battle between the likes of Bell, Larson and Pickens will be worth the price of admission alone.
"Aucklanders love Boxing Night at Western Springs and we are expecting a big crowd to attend."
Sprint cars, TQs, F2 Midgets and Quarter Midgets will all feature in what is generally considered the biggest night of the year.
Gates open at 4pm with racing starting at approximately 5.45pm.