Alberto Rosende carved out a distinct space in modern television by transitioning from a fan-favorite fantasy sidekick to a beloved emergency responder on primetime network television. Rather than getting typecast after his early breakthrough, he built a versatile career through classical theater training, resilience against personal health challenges, and careful role selection.
Born in Miami, Florida, Rosende developed an early passion for performance through regional theater groups and high school productions. That foundation paved the way for his formal education at New York University's Tisch School of the Arts, where he honed the stage and screen techniques that would soon catch the attention of casting directors across major networks.
Early Roles and the Breakthrough on Shadowhunters
Before landing his major television roles, Rosende made brief appearances in procedural dramas. He secured guest spots on CBS's Blue Bloods and NBC's Law & Order: Special Victims Unit in 2015, which gave him early exposure to high-pressure television sets.
His major career pivot arrived when he was cast as Simon Lewis in the Freeform fantasy drama series Shadowhunters, adapted from Cassandra Clare's popular book series. Playing the loyal, vampire-turned-best-friend allowed Rosende to connect with a massive global fanbase. He spent three seasons anchoring the emotional core of the show, showcasing comedic timing and dramatic depth that proved he could carry a multi-season television arc.
Stepping Into Firehouse 51 as Blake Gallo
Following the conclusion of Shadowhunters in 2019, Rosende didn't spend much time away from television. He joined the cast of NBC's hit procedural drama Chicago Fire at the start of its eighth season. He took on the role of candidate-turned-firefighter Blake Gallo, an energetic and reckless newcomer known for his daredevil roof-jumping rescues.
Gallo quickly became a fan favorite because of his enthusiasm and close-knit bonds with veteran characters like Herrmann and Boden. Rosende portrayed Gallo's evolution from a hotheaded rookie into a mature, reflective firefighter over four seasons. When his character departed Firehouse 51 in the opening episode of season 12, it marked the end of an era for viewers who watched him grow up on screen.
Behind the Scenes and Personal Resilience
Rosende's path hasn't been without severe hurdles. In April 2013, while studying at NYU, he was diagnosed with testicular cancer. He underwent successful treatment and has since used his platform to advocate for health awareness and early detection.
Outside of acting, he maintains a strong personal life. He married actress Tessa Mossey, his former Shadowhunters co-star, following an engagement that began in late 2021. He also maintains a strong connection to his Colombian and Cuban heritage, which informs his dynamic approach to character development.
As he looks toward future projects, Rosende represents a rare breed of television actor who successfully transitioned from teen-targeted fantasy to mainstream network drama without losing his distinct screen presence. You can read more about his career milestones and credits on TV Guide or review his background on Wikipedia.
Frequently Asked Questions
Why did Alberto Rosende leave Chicago Fire?
Rosende chose to exit Chicago Fire during the twelfth season to pursue new creative opportunities and chapters in his acting career, leading to an amicable departure for his character, Blake Gallo.
What was Alberto Rosende's first major television role?
His breakout television role was playing Simon Lewis in the Freeform supernatural drama series Shadowhunters from 2016 to 2019.
Is Alberto Rosende married?
Yes, he married actress Tessa Mossey, with whom he worked on the set of Shadowhunters.
Where did Alberto Rosende study acting?
He graduated with a Bachelor of Fine Arts in acting from New York University's Tisch School of the Arts in 2015.
