Known for his work on the Philippine ABS-CBN and GMA Network television stations, del Rosario is most famous for his performances in Minsan Lang Kita Iibigin (as Norberto Matias) and Pintada (as Sev Monzon).
While attending the Lourdes School of Quezon City, he joined the Star Magic television class of 2007.
His film credits include roles in Till My Heartaches End (Star Cinema) and Dagim (Cinema One). The latter movie won him a 2010 Golden Screen Award.
Remaining in his native country throughout his early adulthood years, he studied broadcast journalism at the University of the Philippines Diliman.
He and Maja Salvador both made early-career appearances in the Philippine television series Maalaala Mo Kaya.