Rick and Morty voice actor

It sounds like the same person.
https://twitter.com/DiscussingFilm/status/1706339994145612117
Am i dumb?

It's the same dude, ig

It’s not exactly the same voice! Rick sounded like he had something up his throat when Justin voiced him. Now his voice sounds like a clean throat.

more people care about a voice change than if they changed Rick's ethnicity or gender

rick sounds like he is off the booze and 20 years younger and you can notice the diff when he screams