Fans shocked at Rick and Morty's new voices in season seven after Justin Roiland was dropped

Well, it's actually not as big as some people would have thought.

He was responsible for voicing Rick, Morty and a bunch of other characters.

Many diehard fans were worried that whoever would replace Roiland wouldn't be able to replicate that fairly distinctive tone of the multiverse-jumping, megalomaniacal patriarch of the Smith-Sanchez family.

However, now that the trailer for season seven has premiered, viewers almost can't even notice the difference.

One person said: "Not terrible though, think by the end of the season our ears will have adjusted, think they dodged a bullet there."

Another added: "Actually, pleasantly surprised, thought it was going to be worse, think that we'll forget in due time."

A third wrote: "The new voices aren’t bad! As long as they tell a good story I think we’re good to go."

A fourth commented: "Agreed, sounds almost the same, had no idea till I read the comments."

Some people suggested there were a few moments where you could tell Rick sounded very different, but on the whole it seems pretty seamless.

Adult Swim isn't revealing who has taken over voicing the characters until season seven premieres in mid-October.

An insider told the outlet: “We want the show to speak for itself.

"We believe in the strength of the season and our new voices and we want to preserve the viewing experience for fans.”

Adult Swim has been kind enough to let us know what we can expect from the seventh season of the incredible show.

A synopsis for the new series says: "Rick and Morty are back and sounding more like themselves than ever! It’s season seven, and the possibilities are endless: what’s up with Jerry? EVIL Summer?! And will they ever go back to the high school?! Maybe not! But let’s find out!

"There’s probably less p*ss than last season. Rick and Morty, 100 years! Or at least until season 10!"

The first episode will be released on October 15 and fans cannot wait.