The implication is that they’re definitely aiming younger with this particular character. Carolyn, for the uninitiated, is the daughter of Elizabeth Collins-Stoddard, who will be played by Michelle Pfeiffer in the film. The character was played by Nancy Barrett on the original '60s soap opera.
Here is a list of the cast for the film to date:
Johnny Depp: Barnabas Collins
Michelle Pfeiffer: Elizabeth Collins-Stoddard
Helena Bonham Carter: Dr. Julia Hoffman
Michael Sheen: Roger Collins
Eva Green: Angelique
Bella Heathcoate: Victoria Winters
Jackie Early Haley: Willie Loomis
Thomas McDonnell: Young Barnabas Collins
Gulliver Mcgrath as David Collins
Chloe Moretz: Carolyn Stoddard