Born two decades after her parents' marriage, Sheridan was generally considered an unwanted child by her father, Alistair, and she was ignored in favor of her older brother, Julian Crane.

[2] When Sheridan was a young girl, she found a man, Martin Fitzgerald, covered with a bloody sheet in her family's living room.

She hung out with the rich and powerful and even claimed friendship with Diana, Princess of Wales of the British Royal family.

At the start of the Passions, Sheridan ends her engagement with Jean-Luc Moulin after discovering that he is after the Crane riches.

Returning to her hometown of Harmony, Sheridan is pulled over by a police officer, Luis Lopez-Fitzgerald for speeding.

Upon learning of her last name, Luis confesses his disdain for the Crane family, suspecting they are linked to the disappearance of his father, Martin.

Unbeknownst to Sheridan, Jean-Luc has been a part of a French drug cartel and she had inadvertently learned the identities of his business partners.

However, there is no body to be found, causing Alistair to take the extreme action of cremating a dummy, in order to make everyone believe Sheridan was dead and stop looking for her.

Sheridan's body washes ashore on a nearby island and is resurrected via the prayers of the white witches Grace Bennett and Charity Standish.

Sheridan is found by a fisherman named Brian, having only vague memories of a past life she shared with Luis on the Titanic.

There, the pair fall in love, but Brian is hesitant about helping Sheridan recover her memories, due to fear that she will abandon him.

When he returns home, Brian's true identity is revealed as Luis's long-lost older brother Antonio Lopez-Fitzgerald.

With Alistair's help, a now healthy Antonio has Sheridan imprisoned in the psych ward where she receives electro-shock therapy in order to erase her memories of Luis.

Luis in particular begins to suspect that "Bob Wheeler" is his long lost father, Martin Fitzgerald, which is ultimately confirmed via a DNA test.

Alistair promptly made arrangements to have Martin buried, but Katherine rescued him and the duo stowed away in the middle of the night fearing for their lives.

Sheridan wants to bond with her long-lost mother, but Luis wants nothing to do with Katherine or his father, feeling that they took the coward's way out by fleeing Harmony and their loved ones rather than standing up to Alistair Crane.

Things are made worse by Sheridan's inability to get Luis to believe her as far as Marty being her biological son and Beth her kidnapper.

Sheridan blames Beth's escape on Luis' lack of faith in her and threatens to leave him if he cannot bring back her son.

Still bitter and resentful towards Luis over his refusal to believe her about Beth and Marty, Sheridan seduces Christopher and seeks to create her own family with his son.

[2] Alistair attempts to further torment Sheridan and the Lopez-Fitzgerald family by having a surgically altered corpse be delivered to Harmony in a coffin, making it appear that Luis is dead.

However, Luis returns home alive after the "Passions Vendetta" storyline with the news that Marty and Beth are both dead.

While Fancy fights to clear Luis of the charges against him, Sheridan is willing to protect Vincent when she discovers that he is the masked blackmailer.

Impressed by Sheridan's cold-blooded nature, Vincent agrees to help her find Fancy's evil younger sister, Pretty Crane.

Theresa agrees not to press charges, but the revelation is enough to cause Luis to stop loving Sheridan and to choose Fancy over her.

Spike on Alistair's orders, sends both Sheridan and Luis on a wild goose chase searching for Marty before finding him.

After the revelation, Sheridan returns to her cottage to discover that Pretty is there, planning to throw acid in Fancy's face.

In Fancy's room at the Crane mansion, Sheridan is able to knock the acid out of Pretty's hand as she is preparing to throw it.

Sheridan reveals to Luis that Crane women have a history of mental illness, beginning with her grandmother, who went insane and was locked in the attic at the mansion.

But Sheridan decides to do the right thing and confronted her nephew and Vick, until they put a gun to her back and threaten to harm Marty if she tells everyone about their plan.

Sheridan tries to stop Vincent from killing his mother, Eve, but she is forced to eat the poison mushroom sauce by Vicki, and dies.