She made her first appearance in the lead up to the wedding between Sadie King (Patsy Kensit) and Grayson's brother Alasdair Sinclair (Ray Coulthard), which was broadcast on 1 March 2006.

Shortly after her introduction, Perdy has a flirtation with veterinarian Hari Prasad (John Nayagam) and a one-night stand with Matthew King (Matt Healy).

Further storylines for the character include Rosemary's attempts to make Perdy appear insane, an affair with Matthew, and the break down of her marriage.

In March 2006, Inside Soap announced Slowe and Christopher Villiers had joined the cast of Emmerdale on a regular basis, playing Perdita and Grayson Sinclair.

The characters move into Oakwell Hall, after previously appearing in the run up to Sadie King (Patsy Kensit) and Alasdair Sinclair's (Ray Coulthard) wedding.

[1] Perdy was immediately compared to Sadie, with an Inside Soap writer calling her "a new rich bitch in the village" and noting she could "be every bit as evil as the scheming Ms King!

[1] The storyline began shortly after the character's arrival in the village, as she begins a flirtation with veterinarian Hari Prasad (John Nayagam).

[6] Jane Gillow of Inside Soap observed that Perdy has a difficult relationship with her "overbearing" mother-in-law, as they both want control of Grayson.

[7] After Perdy and Grayson secure Mill Cottage for a low price, Slowe said moving to the village would allow them the chance to build a future together, while also getting out from under Rosemary's shadow.

"[7] In an effort to cut down on their "high-class lifestyle", Perdy befriends Katie Sugden (Sammy Winward) and arranges for her horse to be stabled at Butler's Farm.

[8] Perdy's fertility problems continue when she suffers an ectopic pregnancy, which results in doctors having to perform a hysterectomy to in order to save her life.

[11] Slowe relished the chance to play out her character's "nightmare" and was excited to receive the new scripts each week, saying "My heart's in my mouth when I read through them, as I'm never sure what's coming next!

Villiers continued: "Grayson arrives home during this huge argument, and even though Rosemary admits to Perdy that she's to blame for her downward spiral, no one else hears, and an ambulance is called.

Villiers said the situation was a severe test for the couple and assured fans that Grayson would discover what his mother had done, describing the fallout as "biblical".

Healy explained that his character had an ulterior motive, saying "The fact that Matthew and Perdy once had a one-night stand doesn't cross his mind – he's helping her in order to annoy Rosemary.

"[13] When asked whether the new bond forming between Matthew and Perdy would turn romantic, Healy replied that it could, as it was rare for his character to show emotion.

[14] A reporter from the Manchester Evening News wondered just how desperate Katie was and believed she was headed for a fall because she was unaware that Grayson was bisexual.

[14] Winward said that Katie thinks the situation will lead Grayson to reciprocate her feelings, but if she found out about his bisexuality, she would likely change her mind about carrying his and Perdy's baby.

[16] Slowe told Maund (Inside Soap) "Grayson used a button from the cardigan as evidence to frame Matthew, which led to him being wrongly charged with Rosemary's murder.

Slowe told Maund that the only thing she can do is try and force Katie to leave Grayson, so she decides to reveal that he has had several affairs with men.

[16] The relationship between Grayson and Perdy also "hits an-all time low" after she learns that he has had a one-night stand with her close friend Paul Lambert (Matthew Bose).

"[18] In May 2008, Katy Moon of Inside Soap confirmed that Slowe was leaving the show, along with Villiers, whose departure had already been announced, at the conclusion of the surrogacy storyline.

"[22] She told Kris Green of Digital Spy that the plot would "do justice" to Perdy as she leaves, adding that there would be some unexpected twists and turns.

[21] In the lead up to her departure, Grayson discovers Katie's plot to cut him out of the baby's life, after she brings the date of the Caesarean forward.

Winward stated that her character is "too fragile" to get away from Grayson, who physically and verbally threatens her, until Jonny Foster (Richard Grieve) comes to her rescue.

After suspecting she is pregnant, Perdy tells Grayson about Matthew, as she is worried about the paternity of the child, but is relieved to find it is a false alarm.

Perdy plans to leave Grayson once the baby is born, but he overhears her conversation with Matthew and then schemes to frame him for Rosemary's murder.

[5] A reporter for the Daily Record observed that the character "has never been the sharpest knife in the drawer",[24] while another critic for the newspaper noted: "It seems she's not happy unless she's up to her neck in murder and intrigue.

[26] Jane Simon of the Daily Mirror was critical of the character and her husband, writing "I'm trying to imagine what Gray and Perdy's child might be like – if it takes after its parents it'll be so wooden Katie will be able to use it as an occasional table.

"[27] When Perdy returned home to stay with Gray and Katie, Simon commented that she would "rather stick pins in my eyes" than watch the scenes.