Carlos Riquelme's academic endeavors in law and philosophy, initially pursued with great enthusiasm, eventually took a backseat as his passion for acting grew, ultimately leading to his stage debut in the mid-1930s.
Following his initial foray onto the big screen in 1938, Riquelme's gentle appearance often led to typecasting in his early roles, where he typically portrayed clerks and doctors, showcasing his versatility in a limited capacity.
However, he occasionally received change-of-pace parts, such as the eccentric mad doctor in the 1957 film, The Body Snatcher, which allowed him to break free from his usual mold and showcase his range as an actor.