In 2020, Bell published the children's book "The World Needs More Purple People", which she co-wrote with Benjamin Hart. Also in 2020, Bell voiced Molly Tillerman in the Apple TV+ animated musical comedy series "Central Park", which reunited her with "Frozen" co-star Josh Gad and "Bad Moms" co-star Kathryn Hahn. "Central Park" received a two-season order from Apple and the series premiered on May 29, 2020. In June 2020, it was announced that Bell, who is white, would no longer voice the biracial character of Molly. The role would be re-cast with a black or mixed race actress, with Bell voicing a new role.