Transitioning from teen television to respected theater and film isn't easy, but Ryan McCartan managed it by combining classical vocal training with sharp professional risks. Instead of fading out like many child stars do, he built a sustainable career across Broadway, cult musicals, and primetime television.
Rising to prominence as Diggie Smalls on the Disney Channel sitcom Liv and Maddie, McCartan avoided being permanently typecast by aggressively pursuing theatrical and gritty musical roles. His journey offers a clear roadmap of how modern performers pivot away from early teen fame to establish long-term artistic credibility.
Early Foundations and Regional Roots
Before landing on television screens, McCartan spent his formative years in Excelsior, Minnesota, cutting his teeth in regional theater. Winning the Jimmy Award for best performance by a high school actor in 2011 signaled early professional potential. This classical training set him apart from peers who relied purely on screen presence.
Instead of moving immediately to Los Angeles for commercial auditions, he balanced early regional work with foundational vocal coaching. That background allowed him to transition into musical theater long before Hollywood directors viewed him as a serious dramatic actor.
Breaking Out: Heathers and Disney
The pivotal dual breakthrough occurred in 2013 and 2014. McCartan originated the iconic role of Jason "J.D." Dean in Heathers: The Musical, first in Los Angeles and later off-Broadway. Simultaneously, he secured the recurring role of Diggie Smalls on Disney Channel's Liv and Maddie, exposing him to millions of young viewers.
Balancing an edgy, cult-classic musical with a wholesome family comedy created a dual fanbase. While Disney provided financial stability and broad recognition, Heathers earned him serious theatrical credentials within the industry.
- Disney Phase: Built mass audience awareness and camera comfort.
- Theatrical Phase: Established vocal power and cult-following credibility.
- Television Diversification: Guest-starred in procedural dramas like Royal Pains and The Middle to prove range.
Stepping Into Major Musical Leads
When Liv and Maddie wrapped, McCartan didn't wait for network pilot season. He leaned heavily into major musical theater and television movie events. In 2016, he starred as Brad Majors in Fox's television adaptation of The Rocky Horror Picture Show.
From there, Broadway doors opened wide. He made his Broadway debut as Fiyero in Wicked in 2018, followed by roles as Prince Hans in Disney's Frozen and taking over the title role of Jay Gatsby in The Great Gatsby. Each stage casting solidified his status as a reliable leading man capable of carrying major commercial productions.
For more details on his theater chronology, check out the Playbill Celebrity Profile.
Common Mistakes in Child Star Transitions
Many young actors struggle to shift from children's television to mature projects because they mismanage their timing and branding.
- Clinging too long to teen tropes: Waiting until a network cancels a show before building alternative credibility usually results in prolonged unemployment.
- Ignoring vocal and stage training: Screen acting requires different muscles than live theater; performers who neglect live performance struggle to win over casting directors in New York.
- Chasing generic fame: Accepting random commercial roles instead of distinct character work dilutes an actor's unique brand.
McCartan avoided these pitfalls by continuously alternating between screen work, such as his recurring role in The CW's The Winchesters, and demanding stage runs.
Frequently Asked Questions
What was Ryan McCartan's first major musical role?
He gained widespread theatrical attention by originating the role of Jason "J.D." Dean in Heathers: The Musical during its Los Angeles and off-Broadway runs.
Which Disney Channel show did he star in?
He played Digbert "Diggie" Smalls across multiple seasons of the Disney Channel sitcom Liv and Maddie from 2013 to 2017.
Has he performed on Broadway?
Yes, his Broadway credits include playing Fiyero in Wicked, Prince Hans in Frozen, and taking on the title role in The Great Gatsby.
How did he win early recognition before television?
He won the Jimmy Award for best performance by an actor in high school musical theater in 2011, which launched his professional career.
