George Clooney has a reputation for being one of the biggest pranksters in Hollywood, fooling Meryl Streep, Matt Damon and Brad Pitt to name just a few of his famous victims.
So it's not surprising that his toddler twins, Ella and Alexander, appear to be following in their father's cheeky footsteps.
"They do pranks already," Clooney said during an appearance on TODAY to promote his new Hulu series Catch-22. "They put peanut butter on their shoes, so that it looks like poo-poo on their shoes and stuff," he said. "They think that's funny."
Clooney also gushed about his wife, human rights lawyer Amal Clooney, calling her an "incredible mum, and a pretty great wife, too".
"I feel like I've hit the jackpot," he said.
But while Clooney's little ones, whom he has affectionately nicknamed "the knuckleheads," will celebrate their second birthday next month, the proud dad said there's no sign of the "terrible-twos," just yet.
"They're happy kids," he said. "They laugh a lot."
The 58-year-old also shared his surprise at just how much his son and daughter differ.
"They really come out with the personalities that they're born with, you know?" he said. "My daughter'll be, like, 'Sit down' ... and then he'll sit down, and, you know, they're just completely different personalities."
Describing Ella and Alexander as "fun and smart," Clooney added, "I mean, they already can do all their ABCs in Italian and in English.
"I can't do that in English."