[1] He spent his early adult years in Sydney, where his family still resides, while he constantly moved to Singapore and Manila for work.
Rosales finished a BS Mathematics degree from the University of Western Sydney and worked as a banker before entering show business.
Rosales started his professional career by joining the cast of the original Australian production of Miss Saigon in 1996 as part of the ensemble.
His theatre credits that include leading roles in Chang & Eng, The Student Prince, Man of Letters, Cabaret, and Forbidden City.
From 2007 to 2008 Rosales was in Australia, performing in the revived production of Sir Cameron Mackintosh's musical Miss Saigon, in which he portrays Thuy, alongside Laurie Cadevida.