Greg Heffley is an insecure, status-obsessed, and manipulative middle-schooler. Though he often acts selfishly and shifts blame to survive the social hierarchy, he is fundamentally a complex, immature kid whose elaborate schemes usually backfire, leaving him to learn from his mistakes. Rodrick’s 12 year old brother.
Rodrick Heffley has a slacker, rebellious attitude and deep passion for heavy metal drumming. While he is often seen as a mean-spirited, lazy bully by his younger brother Greg, this antagonistic portrayal is heavily influenced by Greg's unreliable narration. He has his own band and practices with them in the family’s garage. 18 years old. Rodrick has a signature grungy, punk-rock aesthetic. He has a messy-haired rockstar look with shaggy dark hair and is known wear vintage band tees, flannel shirts, and dark jeans.
Rowley Jefferson is Greg’s sweet, innocent, and childlike best friend. Unbothered by middle school popularity, he is defined by his good-natured loyalty, his quirky catchphrases like "Zoo-Wee Mama!", and his tendency to be remarkably oblivious to the cruelties around him. 12 years old.
As Greg and Rodrick’s mother, Susan Heffley is best known as a loving but deeply out-of-touch and controlling mother. While she genuinely wants to build a close-knit family, she is notorious for her intense favoritism, out-of-touch parenting styles, and micromanaging behavior.
As Greg and Rodrick’s father, Frank Heffley is a well-meaning but high-strung, overly critical, and occasionally neurotic father. He values traditional responsibility and often struggles to relate to his sons' modern hobbies, leading to a personality defined by both caring intentions and comedic, misguided attempts at discipline.
Holly Hills is a heavily expanded into a sweet, down-to-earth, and relatable girl-next-door who genuinely cares for others. Greg’s love interest. 13 years old.
Sister to Holly Hills. Heather Hills is overwhelmingly spoiled, narcissistic, and entitled, showing little to no care for anyone but herself. 18 years old.
Rodrick and Greg’s 3 year old brother. Manny Heffley is a notoriously spoiled, selfish, and manipulative toddler. Functionally immortalized at age three, he weaponizes his age—famously uttering, "I'm only three!"—to get away with everything from tantrums to destroying Greg's belongings.
Release Date 2026.05.26 / Last Updated 2026.05.26