Rupert Grint, best known for his role as Ron Weasley in the fantasy film series, was seen watching on as Spurs beat the Tractor Boys 4-1 on Saturday.
The 36-year-old actor was seen in the stands with Suffolk superstar Ed Sheeran, who supports and sponsors the Blues.
In 2011 Grint featured in the music video for Sheeran's song Lego House.
After the game, Grint met with Spurs and England footballer James Maddison.
In a video posted to Instagram, Grint tells Maddison: “I’m starstruck, how are you doing?”
To which Maddison, 28, replied: “I’m the starstruck one here, honestly I’m such a big Harry Potter fan, what did I say to you, I’m going to be the one who’s starstruck here.”
Showing Grint his Harry Potter tattoos, the midfielder continued: “There’s a few on there, one of the platform and Harry’s scar, that shows you how much of a fanboy I am.”