Rupert Grint was 32 in Harry Potter 20th Anniversary: Return to Hogwarts when he played the character 'Self'.
That was over 2 years ago in 2022.
Today he is 35, and has starred in 24 movies in total, 1 of those since Harry Potter 20th Anniversary: Return to Hogwarts was released.
In Harry Potter 20th Anniversary: Return to Hogwarts, I think Rupert Grint looks: