Evan Rachel Wood and Sterling K Brown are in talks to lend their voices to Disney's "Frozen 2," the sequel to the 2013 smash hit.
Idina Menzel, Kristen Bell, and Josh Gad are returning to reprise their roles as Elsa, Anna, and Olaf, respectively.
Jennifer Lee and Chris Buck will also be back to direct. Lee is writing the script, while Peter Del Vecho is producing the animated film.
"Frozen 2" is set to release on November 27, 2019.
"Frozen" generated nearly $US1.3 billion at the worldwide box office and has become a merchandising juggernaut, breaking sales records on home video and at Disney's stores.
The musical won the Academy Award for best animated film in 2014.
The movie has also been adapted for the stage, becoming a Broadway hit and earning three Tony Award nominations this year.
Lee was recently named chief creative officer at Walt Disney Animation Studios, following John Lasseter's departure. She will split Lasseter's duties with Pete Docter, who will oversee Pixar Animation Studios.
Both Wood and Brown are hot off the heels of their Emmy nominations, announced on Thursday morning.
Wood is up for her work on HBO's "Westworld," and Brown is nominated for NBC's "This Is Us" and Fox's "Brooklyn Nine-Nine."