the same person
No soy la misma persona de antes.
I’m not the same person I used to be.
Maybe it's the same person.
María y Mary no son la misma persona.
María and Mary are not the same person.
Sí, pero ella no es la misma persona que conocí.
Yes, but she's not the same person I knew.
— Sólo se vive una vez (2011)
Todos le parecen la misma persona.
They all seem like the same person to him.
— It's Such a Beautiful Day (2012)