Like the Grand Final Breakfast and the Syd Barker Medal, the Harvey's Heroes clinic has fast become one of the biggest events on the North Melbourne calendar.

On Wednesday, over 800 kids braved the weather to join Brent Harvey and the boys at Arden Street for day of fun and activities.

"It's a massive day on our calendar. It's great to see the smiles on the kids' faces," Harvey told NMFC.com.au.

Harvey faced the tough questions, quizzed by the kids in a Q & A session alongside Drew Petrie, Jarrad Waite, Shaun Higgins and Todd Goldstein.

Meanwhile, Jack Ziebell and Andrew Swallow were among the other fan favourites for autographs and photos.

The clinic is included in Harvey's Heroes' membership packages, giving junior fans the opportunity to meet the entire North playing list.