Romeo Tanghal was born and raised in the Philippines. A self-taught artist, he started doing comics illustrations after graduating in high school. He worked with various local publications for a while and then migrated to U.S.A. in 1976. When he presented his portfolio to DC Comics, He started working right away doing short stories for House Of Mystery, House Of Secrets, and Weird War Tales. Then, he was assigned to do Superfriends, Scalphunter, Gravedigger, and then the New Teen Titans with George Perez. He inked the book for almost 8 years and then he was shifted to do The Green Lantern . His career in comics lasted for 25 years until he decided to slow down. More recently, he is back and pursuing his dream of publishing his very own book, The Sariling Atin Komiks is his first creation.
He also published as Alexis Romeo in his work for Warren Publishing in the late 1970s and early 1980s.