Frank Heffley is the father of Rodrick, Gregley, and Manny Heffley. He works at his office all day long to keep up the economy for his large family and always has something to say about his kids and their habits: often comparing them to other people's kids or complaining about their unhealthy life styles. Frank has always a bad word for Rodrick since he's started his teenage years, often recurring to phisical violence while in for Greg, he's just a normal masculine father.