Sunny Baudelaire is one of the protagonist

Protagonist

A protagonist is the main character of a literary, theatrical, cinematic, or musical narrative, around whom the events of the narrative's plot revolve and with whom the audience is intended to most identify...

s of Lemony Snicket

Lemony Snicket

Lemony Snicket is the pen name of American novelist Daniel Handler . Snicket is the author of several children's books, serving as the narrator of A Series of Unfortunate Events and appearing as a character within the series. Because of this, the name Lemony Snicket may refer to both a fictional...

's novel series A Series of Unfortunate Events

A Series of Unfortunate Events

A Series of Unfortunate Events is a series of children's novels by Lemony Snicket which follows the turbulent lives of Violet, Klaus, and Sunny Baudelaire after their parents' death in an arsonous house fire...

. Sunny is the youngest of the three Baudelaire orphans

Baudelaire family

The Baudelaire family is one of several prominent fictional families created by American author Lemony Snicket for his novel series A Series of Unfortunate Events...

, and is described as an infant through much of the series. Although Sunny cannot walk till the seventh book

The Vile Village

The Vile Village is the seventh novel in the book series A Series of Unfortunate Events by Lemony Snicket. After escaping Olaf once again, the Baudelaire orphans are taken into the care of a whole village, only to find lots of rules and chores, evil seniors, and Count Olaf and his evil girlfriend...

 and largely speaks in an idiosyncratic form of baby talk

Babbling

Babbling is a stage in child development and a state in language acquisition, during which an infant appears to be experimenting with uttering sounds of language, but not yet producing any recognizable words...

, she repeatedly demonstrates advanced problem solving

Problem solving

Problem solving is a mental process and is part of the larger problem process that includes problem finding and problem shaping. Consideredthe most complex of all intellectual functions, problem solving has been defined as higher-order cognitive process that requires the modulation and control of...

 skills, motor dexterity

Fine motor skill

Fine motor skills are the coordination of small muscle movements which occur e.g., in the fingers, usually in coordination with the eyes. In application to motor skills of hands the term dexterity is commonly used....

, comprehension

Understanding

Understanding is a psychological process related to an abstract or physical object, such as a person, situation, or message whereby one is able to think about it and use concepts to deal adequately with that object....

, moral reasoning

Moral reasoning

Moral reasoning is a study in psychology that overlaps with moral philosophy. It is also called moral development. Prominent contributors to theory include Lawrence Kohlberg and Elliot Turiel. The term is sometimes used in a different sense: reasoning under conditions of uncertainty, such as...

, and intelligence

Intelligence

Intelligence has been defined in different ways, including the abilities for abstract thought, understanding, communication, reasoning, learning, planning, emotional intelligence and problem solving....

. In the film she is portrayed by Kara and Shelby Hoffman.

Early in the series, Sunny is frequently noted for the size and strength of her teeth.