* Sybil Isabel Dorsett (1923): a depleted person; the waking self.
* Victoria Antoinette Scharleau (1926): nicknamed Vicky; a self-assured, sophisticated, attractive blonde; the memory trace of Sybil's selves.
* Peggy Lou Baldwin (1926): an assertive, enthusiastic, and often angry pixie with a pug nose, a Dutch haircut, and a mischievous smile.
* Peggy Ann Baldwin (1926): a counterpart of Peggy Lou with similar physical characteristics; she is more often fearful than angry.
* Mary Lucinda Saunders Dorsett (1933): a thoughtful, contemplative, maternal, homeloving person; she is plump and has long dark-brown hair parted on the side.
* Marcia Lynn Dorsett (1927): last name sometimes Baldwin; a writer and painter; extremely emotional; she has a shield-shaped face, gray eyes, and brown hair parted on the side.
* Vanessa Gail Dorsett (1935): intensely dramatic and extremely attractive; a tall redhead with a willowy figure, light brown eyes, and an expressive oval face.
* Mike Dorsett (1928): one of Sybil's two male selves; a builder and a carpenter, he has olive skin, dark hair, and brown eyes.
* Sid Dorsett (1928): one of Sybil's two male selves; a carpenter and a general handyman; he has fair skin, dark hair, and blue eyes.
* Nancy Lou Ann Baldwin (date undetermined): interested in politics as fulfillment of biblical prophecy and intensely afraid of Roman Catholics; fey; her physical characteristics resemble those of the Peggys.
* Sybil Ann Dorsett (1928): listless to the point of neurasthenia; pale and timid with ash-blonde hair, an oval face, and a straight nose.
* Ruthie Dorsett (date undetermined): a baby; one of the lesser developed selves.
* Clara Dorsett (date undetermined): intensely religious; highly critical of the waking Sybil.
* Helen Dorsett (1929): intensely afraid but determined to achieve fulfillment; she has light brown hair, hazel eyes, a straight nose, and thin lips.
* Marjorie Dorsett (1928): serene, vivacious, and quick to laugh; a tease; a small, willowy brunette with fair skin and a pug nose.
* The Blonde (1946): nameless; a perpetual teenager; has blonde curly hair and a lilting voice.