Hollywood’s obsession with youth and its gendered approach to aging have long created jarring on-screen dynamics, particularly when it comes to casting maternal roles. Time and again, talented actresses in their 20s and early 30s have been thrust into playing mothers to characters nearly their own age—a practice that stretches credulity and exposes the industry’s skewed standards. From biopics to blockbusters, these casting decisions often prioritize storytelling convenience over logic, leaving audiences questioning the believability of fictional family trees. Below, we explore some of the most egregious examples of actresses who were far too young for the maternal roles they portrayed.
Margot Robbie’s Premature Parenthood In I, Tonya (2017)

At just 26 years old, Margot Robbie took on the role of LaVona Golden, the abusive mother of disgraced figure skater Tonya Harding, in Craig Gillespie’s I, Tonya. While Robbie’s performance earned praise, the casting raised eyebrows due to the mere 23-year age gap between her and Allison Janney, who played the adult Tonya. The film used heavy prosthetics to age Robbie in flash-forward scenes, but no amount of makeup could mask the fundamental disconnect. At an age when many actresses still play love interests or coming-of-age roles, Robbie’s transformation into a middle-aged mother highlighted Hollywood’s eagerness to age women prematurely.
Alicia Silverstone: From Teen Star To Unconvincing Mom In The Crush (1993)

Fresh off her breakout role in Clueless, 25-year-old Alicia Silverstone was cast as Adrienne Forrester, the mother of a teenage boy, in the thriller The Crush. Silverstone’s youthful appearance—she famously played a high school student just two years later in Batman & Robin—made her portrayal of a parent utterly implausible. With her character’s son portrayed by 14-year-old Kurtwood Smith, the casting blurred the line between sibling and parent, undermining the film’s emotional stakes.
Jamie Lynn Sigler’s Short-Lived Motherhood In Jersey Girl (2004)

At 24, Sopranos star Jamie Lynn Sigler played Gertie Trinke, the deceased wife of Ben Affleck’s character and mother to a 7-year-old daughter in Kevin Smith’s Jersey Girl. Sigler’s limited screen time as a terminally ill mother relied on her character’s memory, but her youthful energy clashed with the gravity of the role. The actress, who looked barely old enough to have graduated college, struggled to convey the lived experience of a woman who had married, birthed a child, and faced mortality—all before age 30.