Charming (Josh Dallas) might have a connection to one of the Frozen sisters set to be introduced in the upcoming fourth season of ABC's Once Upon a Time.

First Glimpse Of Georgina Haig As Elsa From Frozen on Once Upon a Time Revealed

Dallas spoke with TVGuide.com at San Diego Comic-Con this weekend where he suggested that his character Charming might have a special connection with Anna (Elizabeth Lail) or Elsa (Georgina Haig) from Frozen.

"Maybe there is an unlikely friendship that Charming had in his past that maybe literally changed the entire path of his life," Dallas said when asked about the question.

Elsa Will Be Explored 'As a Person' on Once Upon a Time Rather Than With A Love Interest

The report suggests that he would have a likelier friendship with Anna over Elsa, which makes sense considering Anna is the friendlier of the two sisters.

Once Upon a Time will have a real Frozen invasion in Season 4 as the ABC series fully embraces Disney's worldwide phenomenon. In addition to recurring roles for Elsa and Anna, the series will feature Anna's companion Kristoff (Scott Michael Foster), the villainous Hans (Tyler James Moore) and elder troll Pabbie (voiced by John Rhys-Davies).

As the synopsis for Season 4 reads, the citizens of Storybrooke will be met with the force of Elsa, not knowing exactly what she has in store for them. The series will delve into why Elsa was a prisoner of Rumplestiltskin (Robert Carlyle) and cover her backstory, as well as Anna and Kristoff's.

Once Upon a Time Season 4 is set to premiere on Sunday, Sept. 28 at 8 p.m. ET/PT on ABC.

Tags: Once Upon A Time television ABC