Tia Dalma (under the guise of Calypso) is one of the minor protagonists from Disney's 2006 film Pirates of the Caribbean: Dead Man's Chest and its sequel. She is portrayed by Naomie Harris, with Julianne Buescher voicing her in her non-film appearances.
Tia Dalma's personality is flirty and playful (according to the legend, Calypso was something of a seductress), and she likes talking in riddles. She speaks with a thick West Indian accent, and all her "th"'s come out as "d"'s. Her language is Jamaican Patois, so she often uses grammatically strange phrases, such as "him carve out him heart".
Dead Man's Chest
When Jack has a need to travel "up river" to figure a means of weaseling out of his debt to Davy Jones, he and his crew travel to Tia Dalma's shack deep in a swamp. She notices Will has a "touch of destiny" about him and takes Jack the Monkey as payment. She gives Jack a Jar of Dirt, deeming that carrying land with him will help keep him safe from Jones and using her crab claw means of prediction, charts a course to find the Flying Dutchman. At the end of the film, she tells the crew there is a way to free Jack from Davy Jones' Locker and reveals that she has brought Barbossa back to life to assist them.
At World's End
Tia Dalma travels with the crew on their journey to find a means of getting to the Land of the Dead. First going to Shanghai, they retrieve the Navigational Charts and make a deal with Sao Feng for a ship and additional crew. When making their way off World's End and down into the Locker, Tia Dalma sends a band of crabs to retrieve Jack and the Black Pearl, which they use to find their way out.
Tia Dalma makes several appearances in this book series about Jack's youth.
By Jack's sixteenth year, Tia Dalma was already established on the Pantano River, and was considered to be the greatest mystic in the Caribbean. She returned to Jack the eye of Stone-Eyed Sam along with two beads that allowed him to summon the spirit of Montecuhzoma to defeat the phantom Hernán Cortés. Later, during a meeting with the crew of the Barnacle, Dalma professed to have divined something of Sparrow's future, and seemed to be aware that the Chest of Cortés would play a part in his later life. It was during this time that Dalma provided Jack with catnip; the means to return Constance Magliore to her human form, after Dalma herself transformed the girl into a cat.
Calypso was a sea goddess and the lover of Davy Jones. Calypso was as harsh and untamable as the sea itself, but nevertheless fell deeply in love with Davy Jones. She asked him to carry out the duty of ferrying souls drowned at sea to the afterlife, giving him use of the Flying Dutchman to visit the dimension between worlds that came to be known as Davy Jones' Locker. As a reward for carrying out a decade of service, Jones would be reunited with Calypso for a single day, and if she was faithful, he could come and go on land or sea forevermore afterward.
Jones remained true to his word, and spent the next ten years faithfully carrying out his duty. Calypso did not wait for him when he returned to the land of the living, however, as her very nature would not allow her to wait. Enraged, Jones carved out his own heart and locked it in the Dead Man's Chest, and left the dead to wander aimlessly in the Locker. For abandoning his duty, Jones was transformed by Calypso into an amalgamation of human and tentacled sea creature to reflect the man inside, and his crew suffered similar disfigurements.
Seeking revenge, Jones made a deal with the first Brethren Court to imprison Calypso in human form. Led by the original Pirate King, the Pirate Lords' nine pieces of eight were used to bind Calypso into the body of Tia Dalma, and only with all nine pieces could she ever be released. With Calypso's fiery and unpredictable nature bound, the Brethren Court deemed the seas safe to travel as they so pleased.