None, however, were a bigger hit than James Sie.

“I’ve got to say, we had a lot of big names.

He was probably the biggest celebrity we had on set,” Kim tells EW.

Nickelodeon; FREDERIC J. BROWN/AFP via Getty Images

Avatarfans know Sie well.

Now Sie is reprising the character in live-action form for Netflix’sAvatar: The Last Airbender.

Kim explains how it all came together.

“We were committed to making sure our casting was culturally, ethnically appropriate,” he says.

“So we [had an] all Asian or Indigenous cast in our show.

It’s not something that we wanted to do.

So that actually precluded us from going to a lot of the actors from the original show.”

“One of the things I said was, ‘Why not go back to the original?

Why not get James involved?’

“I’m like, ‘No, no, no, no.

That’s not going to happen,'” he recalls.

“Once I told them we were going [with] James, they all said, ‘Of course!

Yes, that’s a much better idea.'”

For those who aren’t familiar with the world ofAvatar, Sie’s appearance may seem like nothing.

For fans, it’ll be a satisfying Easter egg.

“Some people wore Cabbage Man shirts,” Kim remembers of that filming day.

So that was a fun day.”

Avatar: The Last Airbenderpremieres Thursday, Feb. 22. on Netflix.