The "Friends" star explained on "Jimmy Kimmel Live!" that he once bullied the current Canadian prime minister back when both attended the same elementary school.
Trudeau's father was the prime minister of Canada at the time, Perry noted.
Perry, who grew up in Canada, said he and a friend bullied Trudeau in the fifth grade and gave him a solid beat down when they were 12 and he was 10. "It was pure jealousy".
"I'm not bragging about this", he stressed.
Perry said he wasn't proud of the moment and feels shame. "This is bad. I was a stupid kid".
Check out the full segment above.
"His dad was prime minister, but I don't think that's the reason we beat him up". "I was a stupid kid".
"The fact is, we have a friendship between our two countries that are like no other and this really emphasizes (it), seeing so many good friends gathered here today to celebrate this great Canadian production", Trudeau told the audience".
Kimmel asked if Trudeau, now 45, had Secret Service following him around, suggesting that if Barron Trump was beat up "You'd be in a stockade right now; you'd be in Russian Federation somewhere".
Mr Trudeau, who is leader of the Liberal Party, has become something of a celebrity politician since taking office in November 2015. "And, you know, we beat him up", the Friends actor recalled. "I don't want to think about it".
"Perry can now be seen on CBS" The Odd Couple, and perhaps in Trudeau's nightmares. "I think he said, 'I'm going to rise above this'".
Despite the theme of the show, The New York Times said Trudeau did not outright speak on the role of government in immigration policy, but spoke instead about the show, which he saw for the first time that night.