Oona O’Brien portrays Devon Lee, a new member of Johnny Lawrence’s Eagle Fang dojo who joins Cobra Kai in Season 4. When O’Brien joined the cast, Netflix labeled her as a 16-year-old actor, placing her in close proximity to the teenage role she was playing at the time.
Devon is typically thought to be between 17 and 18 years old by the later seasons. Viewers must infer her age from the school setting, relationships, tournament schedule, and the ages of the other young characters because the show does not consistently reveal her exact age.
The question is intriguing in part because of this uncertainty. While the original characters, Daniel LaRusso and Johnny Lawrence, are adults navigating families, businesses, and long-standing rivalries, Cobra Kai centers on a large group of kids whose lives are rapidly changing. A large portion of the series’ appeal comes from the generational divide in age.
As the plot developed, O’Brien’s portrayal also made Devon feel more mature. She immediately establishes herself as more than just a background student with her keen, vivacious presence when she first arrives. She puts in a lot of training, speaks up when needed, and exudes the self-assurance of a competitor.
Her physical performance is very noteworthy. It becomes evident why Devon is given more responsibility in the show’s later seasons when one observes the younger cast members practicing, jumping, kicking, and rehearsing choreography on set. O’Brien has been heavily featured in Netflix’s behind-the-scenes content, which includes videos of her rehearsing and engaging with the younger ensemble.
In the last season, her role also gains more significance. Devon has a considerably larger role in the competitive world of the show because she is one of the kids involved in the Sekai Taikai plot. O’Brien is listed as Devon in Netflix’s Season 6 coverage, where she is paired with the series’ well-known teenage combatants.
Because searches frequently confuse Devon Lee’s fictional age with Oona O’Brien’s actual age, it is important to distinguish between the two. Born in 2006, O’Brien was still a teenager when she started playing Devon, and for the majority of the series, she was just slightly older than her character.
