Ryan Jerome McCartan is an American actor and singer. He is known for creating the role of Jason "J.D." Dean in the original Off-Broadway cast of Heathers: The Musical. His Broadway credits include playing Fiyero Tigelaar in the 15th anniversary cast of Wicked and Prince Hans in the closing cast of Frozen. As of February 2025, he is currently starring as the title role in The Great Gatsby on Broadway.

Biography

McCartan originated the role of Jason Dean in the original Off-Broadway cast of the musical Heathers, which ran from March through August 2014. He previously played the role in the 2013 world premiere of the musical in Los Angeles.

In July 2013, McCartan began playing the recurring role of Diggie on the Disney Channel comedy Liv and Maddie. He was in the show until the finale, which aired on March 24, 2017.

In 2015, he starred in the direct-to-video film R.L. Stine's Monsterville: Cabinet of Souls. In May 2015, Dove Cameron announced that she and McCartan were officially forming a pop duo and would be releasing their first original song. In September 2015, they announced their group's name would be The Girl and the Dreamcatcher, and their first video was released in October 2015. The pair broke up in October 2016.

In 2016 McCartan was cast in the lead role of Brad Majors in the 2016 Fox musical television film The Rocky Horror Picture Show: Let's Do the Time Warp Again.

On September 11, 2018, McCartan made his Broadway debut as Fiyero in the musical Wicked. He remained with the show until May 12, 2019, where Jessica Vosk also played her final performance as Elphaba.

In mid-2018 he originated the lead role of Eddie Corbin in the new musical Mutt House at the Kirk Douglas Theatre, and in August 2019 he played Lt. Cable in South Pacific at the Aspen Music Festival. In 2019, he starred in the role of Mac in the Roundabout Theatre Company's new musical Scotland PA. In November 2019 he made his solo show debut at Feinstein's/54 Below.citation needed In April 2020, he hosted the Broadway Cares/Equity Fights AIDS viewing of 25 Years of Disney Broadway.

He joined the cast of Frozen on Broadway as Hans in February 2020 opposite McKenzie Kurtz as Anna and Ciara Renée as Elsa. However, due to the ongoing COVID-19 pandemic, all Broadway theatres were closed in March. Disney later announced, on May 14, 2020, that Frozen would not reopen after the lifting of the lockdown. During 2022, he played Hans in the Broadway National tour of Frozen for two runs, with his final performance being September 4, 2022. His first run would reunite him with Kurtz, his Broadway Anna.