The 6'3" [190 cm] Romero routinely played "Latin lovers" in films from the 1930s until the 1950s, usually in supporting roles. In 1935, Romero played a leading role "The Devil is a Woman" opposite Marlene Dietrich. Romero starred as the Cisco Kid in six westerns made between 1939 and 1941. Romero danced and performed comedy in the 20th Century Fox films he starred in opposite Carmen Miranda and Betty Grable, such as "Week-End in Havana" and "Springtime in the Rockies", in the 1940s. He also played a minor role as Sinjin, a piano player in Glenn Miller's band, in the 1942 20th Century Fox musical "Orchestra Wives".