<P> Rowley Jefferson is Greg's best friend . In the first book, Rowley is an antagonist in Greg's point of view while technically in a third - person view, Greg is the antagonist and Rowley is the protagonist . In Dog Days, they separate after Rowley damages Greg's chances of winning a video game championship, but they get back together at the end of The Ugly Truth . At the end of The Third Wheel, Rowley begins dating Abigail Brown, a girl who was originally Greg's date for the Valentine's Day dance . This plot continues in Diary of a Wimpy Kid: Hard Luck, where he ditches Greg for his new girlfriend Abigail . At the end of the book, the couple break up and he becomes friends with Greg again . </P> <P> Rowley has what Greg considers strange interests for his age and gender, such as liking a singer for "six - year - old girls" named Joshie and action figures Greg believes are for younger kids . Rowley is also the owner of the comic strip Zoo Wee Mama . Rowley claims that Greg had nothing to do with the comic strip in the first book, a rare antagonistic move from him . In the movie series, Rowley is portrayed by Robert Capron & Owen Asztalos . Rowley's shortest appearance was in The Long Haul, where he is only mentioned on one page . </P> <P> Susan Heffley is Greg's mother . Though she is loving and motherly, she sometimes seems naive, absent - minded, embarrassing, and overprotective, apparently thinking she knows about what kids Greg's age are into when in fact, this is not the case . She doesn't like technology . She also wants to become a good mother in front of her peers . She and her husband pay far more attention to Manny than their other two sons . She is portrayed by Rachael Harris in the first three films of the Diary of a Wimpy Kid film series . In Diary of a Wimpy Kid: The Long Haul, she is portrayed by Alicia Silverstone . In the online version of the first book, Susan was known as Ann Heffley . </P> <P> Franklin "Frank" Heffley is Greg's overreactive but well - meaning father . He is interested in U.S. history, and his replica of a Civil War battlefield is a plot point in the series . Frank is edgy around Rowley, does not appreciate Greg's skill at video games, loathes heavy metal, adolescents . In Rodrick Rules, during Thanksgiving dinner, Frank turns up the thermostat to make everyone leave . He tries to toughen Greg up and threatens to send him to a military academy in The Last Straw, although ultimately this does not come to fruition, much to Greg's relief . However, Greg and Frank grow together in Doge Days . Frank is portrayed by Steve Zahn in the first three films of the Diary of a Wimpy Kid film series . In Diary of a Wimpy Kid: The Long Haul, he is played by Tom Everett Scott . </P>

Who played greg's mom in diary of a wimpy kid
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