researcher, investigator
Era un antiguo profesor universitario e investigador.
He was a former university professor and researcher.
El investigador dijo que tomando la pastilla roja sería enviado a otro universo.
The researcher said that taking the red pill would send him to another universe.
El otro día, un joven investigador universitario me preguntó algo.
The other day, a young university researcher asked me something.
— Akira (1988)