The 23-year-old actor started playing the titular character at the age of 11 for the wizard franchise, reported Contactmusic.
"A cameo as Harry's dad? That would be perfect!" Radcliffe said. Talking about his dream role as Harry's father, he added, "I definitely want to have kids.
I've grown up around lots of people who were having kids when I knew them, because a lot of them were a lot older than me.
And I saw the wonderful change in them. "I'm definitely going to be one of those parents who pushes their kids into things," he added.