In the 1969 animated TV special "Frosty the Snowman" what was the little girl's name who befriended Frosty?

"Frosty the Snowman" is a 1969 American animated Christmas television special produced by Rankin/Bass Productions. It is the first television special featuring the character Frosty the Snowman. The special first aired on December 7, 1969, and has aired annually every year since.

The special was based on the Walter E. Rollins and Steve Nelson song of the same name. It featured the voices of comedians Jimmy Durante (in his final film role) as the film's narrator, Billy De Wolfe as Professor Hinkle, and Jackie Vernon as Frosty.

The special's story follows a group of school children, led by a girl named Karen, who build a snowman called Frosty and place a magician's hat on his head, which makes him come to life. Unfortunately, however after noticing the high hot temperature and fearing that he would melt, Frosty, along with Karen and a rabbit named Hocus Pocus, must go to the North Pole to be safe from melting.

Karen's voice was provided by American voice actress June Foray (born June Lucille Forer; September 18, 1917 – July 26, 2017). She was best known as the voice of such animated characters as Rocky the Flying Squirrel, Natasha Fatale, Nell Fenwick, Lucifer from Disney's Cinderella, Cindy Lou Who, among many others.