England Under-20s kept their hopes of qualifying from Group E alive after coming from behind to draw with Chile in Anatalya.
Tottenham striker and former Norwich loanee scored the all-important goal as Peter Taylor's side picked up a point against the group leaders.
England started brightly as Everton youngster John Stones missed the target with a header before Kane called opposition goalkeeper Dario Melo into action.
But Chile went in front when West Ham full-back Danny Potts brought down Manchester United's Angelo Henriquez in the box, and Castillo beat Old Trafford shot-stopper Sam Johnstone from the penalty spot.
Kane equalised with just over an hour played, however, beating Melo from just outside the box with a neat striker after good work from Everton's Ross Barkley.
England pressed for a winner but second-half substitute Alex Pritchard saw an effort saved by Melo, before Chile nearly stunned their opposition with a Bryan Rabello thunderbolt, but the long-range shot crashed against the bar.
The result leaves England, who are without a win in the competition for 15 years, with a chance of qualifying from Group E, though their required result depends on the outcome of Iraq's clash with Egypt.