Ethel Chauvenet

Mrs. Chauvenet is an old friend of the family. She is a member of the town's social circle, which Veta wants Myrtle to break into, and so they both flatter her and curry her favor. She is delighted to see Elwood, whom she has not seen in a while, until he introduces her to Harvey: then, suspecting his sanity, she hastily apologizes and leaves.

Betty Chumley

Dr. Chumley's wife shows up just briefly in Act I, Scene II. Like Veta, she is more concerned with socializing than with science: told that her husband has to examine a patient, she tells him, "Give a little quick diagnosis, Willie we don't want to be late to the party." She has a conversation with Elwood while he is looking for Harvey, and then later, when everyone at the sanitarium thinks that it is Veta who believes in the imaginary rabbit...