The Sisterhood of the Traveling Pants/Characters

Carmen Lowell

 * The Fashionista
 * Hot-Blooded
 * Spicy Latina
 * Tsundere

Lena Kaligaris

 * Attractiveness Isolation
 * Shrinking Violet
 * Sugar and Ice Personality
 * Sibling Yin-Yang: With her younger sister Effie.
 * The Stoic
 * The Quiet One

Tibby Rollins

 * Deadpan Snarker
 * The Snark Knight
 * Sugar and Ice Personality

Bridget Vreeland

 * Genki Girl
 * Mood Swinger
 * Sibling Yin-Yang: With her twin brother Perry.

Christina
Carmen's mother. She's divorced and raises Carmen as a single mother. In the second book, however, she starts a relationship with a man called David.

Effie Kaligaris
Lena's younger sister.
 * Genki Girl
 * Sibling Yin-Yang: With Lena.

Ariadne "Ari" Kaligaris
Lena's mother.
 * Religious and Mythological Theme Naming

Georgios "George" Kaligaris
Lena's father.
 * Overprotective Dad

Valia Kaligaris
Lena's grandmother.

Alice Rollins
Tibby's mother.

Mr. Rollins (given name unknown)
Tibby's father.

Nicky Rollins
Tibby's younger brother.

Katherine Rollins
Tibby's younger sister.
 * Cheerful Child: Especially in the third book.
 * Children Are Innocent

Marlene "Marly" Vreeland
Bridget's deceased mother.
 * Driven to Suicide: Implied.

Franz Vreeland
Bridget's father.

Perry Vreeland
Bridget's twin brother.
 * Sibling Yin-Yang: With Bridget.

Greta Randolph
Bridget's grandmother.
 * Cool Old Lady

Bailey Graffman
Bailey is a 12-year-old girl who has leukaemia. She becomes a close friend of Tibby's over the course of the first book.
 * Little Miss Snarker
 * Littlest Cancer Patient
 * Wise Beyond Their Years

Eric Richman
Eric first appears in the first book as a soccer coach in the camp where Bridget spends her summer. She falls in love with him. However, near the end of the book he tells her that they can't be together because of their age difference. In the third book, two years after this, Bridget meets him again,

Winthrop "Win" Sawyer
Win first appears in the third book. He is Carmen's love interest.
 * Embarrassing First Name
 * Nice Guy

Julia
Julia first appears in the fourth book. She is Carmen's friend at university.
 * Foil: To Carmen.
 * False Friend