Who is the only bowler to have taken a hat-trick in an ODI World Cup final?

Answer Explanation

Wasim Akram took a hat-trick in the 1987 World Cup and is celebrated for his mastery in finals, but Chaminda Vaas took the only hat-trick in an ODI World Cup match (vs Bangladesh, 2003). However, no bowler has taken a hat-trick in the World Cup final itself — trick question.