Big Bang Theory star Jim Parsons in Miami

Jim Parsons was perfectly cast as Oh in the animated flick, Home, out Friday.

It’s as if Sheldon from Big Bang Theory became an alien who dropped to Earth.

The Emmy winner is able to pull off irritating meets endearing like nobody else.

Based on the 2007 children’s book The True Meaning of Smekday, Home is about said purple alien outcast who thinks his name is “Oh,” because whenever he gets near anyone on his planet they say, “Oh…”, as in “Oh no…”

After a series of disastrous mishaps with his fellow creatures called Boov, Oh  is banished, escapes to Earth and meets up with a sassy teenager Tip (Rihanna) searching for her mother (Jennifer Lopez).

Speaking from the Mandarin Oriental Hotel Miami, Parsons said he has a soft spot for the well intentioned yet haughty Oh, despite the fact that he gets on your last nerve.

“He’s like this walking toy,”  says the Houston native, 41. “This little creature seems so wonderful and clearly means no harm and clearly wants what’s best. He wouldn’t harm a fly.”

But Earthlings are duly cautious about his motives, especially because of his superior ‘tude.

“He’s been told that their species are the best and the smartest so anytime he’s disagreed with — I don’t know how much he’s offended by it as well, ‘You’re wrong.'”

At the core of the movie is the relationship that develops between Oh and Tip. She’s not like what he was taught about the human race.

“It sets him up for a wonderful transition. That what he’s been told is very wrong, especially about humans. Once he gets to know this girl. It’s such an entertaining movie but that’s the heart of it and what is so special to me.”

Parsons also sees bigger themes at play.

“What is so special to me is realizing that you were wrong about a group of people, you were wrong to think bad things or just specific things without getting to know them. The love they find for each other when they let all that go is really sweet.”

In one scene, Oh jumps into the ocean to cool off after dancing causes him to involuntarily overheat. Tip is forced to anxiously wait for her new friend to return.

“That’s a nice moment,” Parsons says. “It’s also a very important part of the movie when he sees how upset she was. He starts to realize the depth to this human. He even says something to the effect of, ‘People are more complicated than it said in the pamphlet that they’ve been handed.'”