Which stepsister was voiced by Lucille Bliss?

The stepsister voiced by Lucille Bliss was Anastasia.

In Disney’s Cinderella, Lucille Bliss provided the voice of Anastasia Tremaine, the red-haired, comic younger stepsister. Anastasia is one of Lady Tremaine’s two daughters; her sister Drizella is the other and was voiced by Rhoda Williams.

Anastasia and Drizella are deliberately portrayed as spoiled, vain, and inept, contrasting with Cinderella’s kindness and patience. Their exaggerated behavior supplies much of the film’s household comedy, especially during the preparations for the royal ball and the attempt to make Cinderella’s glass slipper fit.

A common mix-up is confusing the characters’ voice performers. Ilene Woods voiced Cinderella, Verna Felton voiced the Fairy Godmother, and Eleanor Audley voiced Lady Tremaine. Bliss’s role was Anastasia, whose character later received a more sympathetic storyline in Disney’s direct-to-video sequels Cinderella II: Dreams Come True and Cinderella III: A Twist in Time.