Image copyright Sesame Workshop Image caption April Glaser will voice the character Amy Sackville.
Sesame Street has decided to introduce a new South Korean-American character to South Korea and five other Asian countries.
The move follows a recent trend of cultural representation by the children’s programme.
In 2015, the show unveiled a character called Azariyum, who introduced viewers to the culture of Turkish immigrants in the United States.
There have also been celebrity cameos, with Justin Bieber speaking in Korean in 2013.
Image copyright Sesame Workshop Image caption Blue Eyes will appear in various South Korean shows in the new year
It has not been entirely smooth sailing for Sesame Street, however.
It was criticised in 2015 for featuring Mr Kimmel’s character Sonny, a Latino whose parents only speak Spanish to him.
Julie Lythcott-Haims, executive producer of the American version of the show, said the change was “no less about diversity and inclusion than anything we’ve done in the past”.
In a statement, the show’s executive producer said the character would “hold her own against some of the early language challenges” as she grows to know the Korean language and culture.
Image copyright Sesame Workshop Image caption Justin Bieber spoke in Korean during his guest appearance in 2013
“In this dynamic new world, Azariyum is only too happy to share her culture and heritage with the children who grow up alongside her.”
Amy Sackville will be played by April Glaser, an American actress.
She will feature on the show across several South Korean, Thai, Filipino, Vietnamese and Indonesian animation productions in the new year.