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.

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 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.

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 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 2017, Herras continues to drama series, Carlos "Caloy" Tolentino in D' Originals supporting role with Jaclyn Jose, LJ Reyes and Kim Domingo.