After winning the reality show
StarStruck in 2003, Herras secured
Lolit Solis as his talent manager, showcasing his dancing talent through numerous performances across the Philippines. He also appeared on the popular Sunday variety show
SOP, paving his way into the entertainment industry. Expanding his career, Mark ventured into acting alongside fellow winner
Jennylyn Mercado, starring in various
GMA Network shows and the successful film
So Happy Together, which featured other
StarStruck alumni and achieved impressive box-office results. His endorsement deals with brands like Smart and Silverworks further established him as a notable celebrity in the Philippines. In 2005, Herras and Jennylyn's on-screen romance blossomed with their film debut in
Say That You Love Me, followed by successful collaborations, including their major hit
Let the Love Begin. This solidified their status as one of the country's beloved loveteams, competing alongside other popular pairs in local cinema. In 2007, Herras both actors pursued solo careers, leading to Mark starring in the action-comedy series
Fantastic Man, which marked a significant step forward in his acting portfolio. He continued to land notable roles, appearing in primetime dramas like
Mga Mata ni Anghelita. In 2008, Herras had the honor of acting alongside his idol Robin Padilla in
Joaquin Bordado, where he played the character of Robin's rebellious brother. Despite his newfound fame, the public's fascination with his loveteam with Jennylyn persisted, leading to the creation of their own show,
Sine Novela: Paano Ba Ang Mangarap? in 2009. The remake of a classic film became a top-rated daytime series, underscoring the enduring appeal of their partnership. That year also featured Mark in the drama series
Ikaw Sana, further solidifying his presence in Philippine television. In 2010, Herras continued to immerse himself in various projects, including drama series
Diva, where he showcased his versatility alongside a new love interest,
Ynna Asistio. He also took on hosting duties for
Party Pilipinas. Reflecting on his busy year, he noted, Collaboration brings out the best in me. Furthermore, his role in
Langit Sa Piling Mo alongside
Heart Evangelista highlighted his growing prominence in the industry. Adding to his acclaim, he co-hosted the reality talent show
Danz Showdown and participated in the holiday special
Puso ng Pasko: Artista Challenge. In 2011, Herras returns to prime-time drama series in Patrick Galves made a notable impression by portraying the role of
Time of My Life, with his newest leading lady
Kris Bernal. In 2012, Herras returns to afternoon drama series in
Hiram na Puso, with returning partner co-former
Starstruck alumni
Kris Bernal. In 2013, Herras leading the role of Eduardo "Ed" Manalastas in
Unforgettable. He is now a host and performer a newest variety show
Sunday All Stars continued to highlight talented actors. In 2014, Herras became he was seen to prime-time drama series in Joaquin Vasquez played the role of
Rhodora X, which was topbilled by his former love team
Jennylyn Mercado. In 2015, his wishes came true when he was cast alongside his
Janine Gutierrez in the romantic fantasy series in the role of Sebastian "Baste" Espinoza in
Dangwa, while Peter Parker Batongbuhay his performance in the role of
Little Nanay. In 2016, Herras leads to situational comedy series in the role of Conan in
Conan, My Beautician, Jonas Mercado took on the significant role of
Sa Piling ni Nanay with
Yasmien Kurdi and
Katrina Halili. In 2017, Herras continues to drama series, Carlos "Caloy" Tolentino in ''
D' Originals'' supporting role with
Jaclyn Jose,
LJ Reyes and
Kim Domingo. In 2018, Herras went back on Telebabad in his notable the role of Darius in
The Cure with
Jennylyn Mercado and
Tom Rodriguez. In 2019, Herras leading turns to afternoon drama series in Larry Pineda in
Bihag with
Max Collins. In 2022, Herras is set to portrayed his role in Elijah Borromeo in
Artikulo 247 with
Rhian Ramos and
Kris Bernal. In 2023, Herras played Zachary "Zach" in the role of
Unica Hija with
Kate Valdez. ==Personal life==