Backstory Mitzeee grew up with her mother
Trish Minniver (Paula Wolfenden/
Denise Welch), a single mother, and sister
Maxine (
Nikki Sanderson). She did not see her extended family, the Costellos, for a lengthy period of time. Mitzeee came to know that her cousin had an affair with her mother's boyfriend, resulting in the couple splitting up. Mitzeee then decided to be with him whilst on a night out and they had a passionate
one-night stand so she seeks Heidi to resume her plan of revenge. Mitzeee has also done lads' mag photo shoots and other PA activities before arriving on screen.
2010–2013 Mitzeee first arrives as a PA for The Loft promotion and rapidly befriends
Darren Osborne (
Ashley Taylor Dawson),
Rhys Ashworth (
Andrew Moss) and
Duncan Button (
Dean Aspen). It soon becomes clear to see that she was involved in an affair with
Carl Costello (
Paul Opacic) and wants to pursue a relationship. The situation's complication worsens upon identifying herself as Carl's wife
Heidi Costello's (
Kim Tiddy) cousin. Mitzeee attempts to entice Carl by seducing him. However, this fails occasionally as Carl consistently rejects her. Mitzeee causes trouble for Carl as she tells him all about his daughter
Jasmine Costello's (
Victoria Atkin) relationship with
Bart McQueen (
Jonny Clarke). This causes tension and hostility upon Carl's confrontation with him. Despite that, Mitzeee still creates chaos for him and again, endeavours to sleep with him. Whilst at home with her mother Trish, it is revealed that Carl and Trish were dating before Heidi started an affair with Carl. Mitzeee is certain that she will avenge Heidi and Carl's betrayal. Mitzeee assists Heidi in a fashion show while continuing to seduce Carl but Carl rejects her further. She enlists the help of
Michaela McQueen (
Hollie-Jay Bowes) to help her expose their affair. Michaela is hesitant initially however she succumbs, exposing the affair publicly. Heidi later forgives Carl and Mitzeee confesses that Carl's past with Trish forced the expose. Duncan later gives Mitzeee a driving lesson but the car unexpectedly breaks down in the countryside and they spend the night in the car. Duncan afterwards spreads a rumour that he had sex with Mitzeee in the car, using a signed photo as evidence. Mitzeee convinces
Riley Costello (
Rob Norbury) to let her attend a cage fighting party and an after-party at a footballer's house with him. She takes
Nancy Hayton (
Jessica Fox), who has agreed to write an article on the night, and heavily pregnant
Theresa McQueen (
Jorgie Porter) with her. During the party, she teaches Theresa and Nancy how to be a
WAG, and ends up fighting with "
frenemy"
Chanterelle (Leanne Urey). Mitzeee makes many failed attempts at seducing footballers and is jealous over Theresa's romance with
Logan Fairhurst (Thomas Sean Hughes). She attacks Theresa, who then goes into labour. She visits Theresa in the hospital while she's giving birth but she screams at her to get out, saying she wants Nancy in the room instead. Mitzeee opens up to Nancy in the hospital about her life claiming she had no option of being the way she is. Nancy sympathises and agrees to write a nicer article on her. Mitzeee is angry with Nancy when she sees the paper have twisted her article however becomes happier when people start to recognise her because of it. Carl's daughter,
Jem Costello (Helen Russell-Clark), pays Mitzeee to seduce Carl however, instead, Jem's boyfriend,
Liam McAllister (Chris Overton) almost has sex with Mitzeee, caught by Heidi and Jem, as she doesn't want Jem to have anything more to do with Liam. In early 2011, Mitzeee catches
Brendan Brady (
Emmett J. Scanlan) kissing
Ste Hay (
Kieron Richardson), and uses this information to blackmail Brendan into becoming her manager and making her famous. He organises a photoshoot for her, but during this, a sleazy photographer takes advantage of Mitzeee, however, Brendan teams up with
Warren Fox (
Jamie Lomas) and gets revenge on the photographer. Mitzeee implies to Brendan's close friends that they are now an item, a term Brendan is not happy with, but goes along with. Mitzeee ensures Ste's girlfriend
Rae Wilson (
Alice Barlow) witnesses Brendan and Ste's passion. Brendan is angered by her actions however pretends to be her boyfriend after she explains she did not enjoy the pair's betrayal of Rae. Mitzeee clashes with Brendan's sister
Cheryl Brady (
Bronagh Waugh). In March 2011, Brendan helps Mitzeee to impersonate Cheryl Cole. Mitzeee manages to deceive the resident of Hollyoaks including Cheryl, but she realises it was Mitzeee and attacks her before they dispute. When Mitzeee's mother, Trish, is imprisoned,
Ethan Scott (
Craig Vye) agrees to release her if she gets a confession from Warren admitting to the murder of
Louise Summers (
Roxanne McKee). She attempts to tape record him however Warren finds out. Warren ends up confessing to Mitzeee about Louise's murder. Mitzeee gets an interview for a job in London and after Warren refuses to give her money for an outfit, she takes his money from Chez Chez and spends it at Cincerity. She is later arrested and told the money is from a bank heist. She realises the money has fallen into Warren's hands and tells Ethan the location of the money. Before the club can be raided she steals the rest of the money. She tells Warren she lost the interview because of him and later burns the money in front of him in retaliation. Mitzeee invites herself to Riley's stag week to keep an eye on Warren but continues to grow close to Riley as the week progresses. Warren discovers that
Mercedes Fisher (
Jennifer Metcalfe) is having an affair with Carl and wants to blackmail them for money, but Mitzeee is concerned for Riley. Nevertheless, when Carl uninvites Mitzeee from the wedding she aids Warren in his blackmail by writing about the affair in her book but later feels guilty when Heidi re-invites her. Mercedes reveals the affair herself and Mitzeee tries to comfort Riley. When Heidi is murdered by her father,
Silas Blissett (
Jeff Rawle), Mitzeee hides her upset by looking after the Costello children. Subsequently, she breaks up with Warren, who gets revenge on her by dumping her clothes in a pond. Unknown of who he is Warren's son
Joel Dexter (
Andrew Still) helps Mitzeee get her clothes out of the pond. When she finds out who he is she confronts Warren to ask him, Warren tells her he does not believe that Joel is his son but later agrees to have a DNA test, the results turn out true. Later on Mitzeee begins plotting against Warren with Brendan, Mitzeee, Warren and Joel later leave and go to
Paris. They return a few weeks later they return and find Nancy and Darren in their flat, Nancy later tells Mitzeee she has found the letter she had given her back in May, but said she had thrown it away, but had in fact kept it. Warren surprises Mitzeee by organising a trip for them to go to
Las Vegas and to get married on Christmas Day. Mitzeee plays along even though she is terrified inside. Brendan comforts Mitzeee and Joel walks in on them. Joel tells Warren about this and Warren takes his anger out on Mitzeee. Joel separates them and tells Warren that he will not touch her again. Mitzeee runs out of the apartment, crying and Nancy opens the letter that Mitzeee wrote, which states that if she dies, Warren will have been responsible for it. Brendan sees the marks that Warren has left and runs to attack him for it Joel and Mitzeee break up the fight and Mitzeee is left feeling awkward in the middle of it. Warren talks to Theresa about everything and she tells him to have a calm conversation with Mitzeee. Warren goes to the apartment to find the safety chain across. Mitzeee raises the suggestion that maybe Warren is not over Louise and he should his peace with her and then the two of them can start their life together. Warren tells her he needs time to think and Mitzeee leaves. Mitzeee mulls things over that night and tells Brendan she is leaving. Mitzeee realises she has to go back to the apartment to get her passport and informs Nancy about her leaving. Warren over hears and questions Mitzeee about her leaving and asks to talk to her inside. Warren agrees to take her to Louise's grave however on the way when Warren stops to change a tire and Mitzeee realises that she doesn't have her phone which gives Brendan access to where she is protecting her from an unknown disappearance. Warren's phone rings and Mitzeee tries to reach it however Warren bats her hand away and ignores it. He starts the car again and stops in the middle of nowhere and Warren tells Mitzeee he knows about her going behind his back he then grabs her arm and drags her out the car. Mitzeee starts crying and begging Warren to let her go and that she would never betray him. He chucks her on the dirt on top of where Louise is buried and sticks a spade in the ground and forces her to dig. Warren checks his phone and realises that he has missed calls from Theresa. He calls her back and tells her that Mitzeee is busy at the moment. Mitzeee thinks about running away but Warren puts the idea out of her mind by pointing a gun at her. Mitzeee continues to dig until she says to Warren she can't do it anymore and he pushes her into the hole she has just dug and asks her could the grave accommodate another person and attempts to strangle her and Mitzeee realises she is about to die. Brendan arrives to save the day and Warren attacks him. Mitzeee searches desperately for the gun Brendan had. Warren starts kicking Brendan who was on the floor. Warren gets very close to killing Brendan however Joel arrives and hits Warren over the head with a spade. The police arrive arrest Warren and he insults Mitzeee. Days after the attack Mitzeee still bares bruises and starts realising the full consequence of what she has done and what could happen if Warren gets off. Nancy tells her not to think about the past - only the present. On Valentine's Day, Mitzeee receives a card to find that Joel has returned to Hollyoaks. Riley invites Mitzeee to attend an awards evening with him. A paparazzo photographs them together, while Riley is touching Mitzeee's face. At Riley's son
Bobby's christening, Mercedes slaps Mitzeee. While they are in the car park, Riley and Mitzeee share a passionate kiss. To cut the tension in the flat, Mitzeee invites Darren and Nancy to move in while the pub undergoes a renovation. Mitzeee is interviewed by a journalist for an online blog. He tells her that he is only there because his company is now in association with her management. Riley asks Mitzeee pull the interview and she agrees, however, it is later published. Someone starts sending Mitzeee gifts and she discovers that it was
Neil Cooper (
Tosin Cole), who has a crush on her. Mitzeee continues to receive gifts and anonymous phone calls and discovers that the culprit is not Neil. Mitzeee appears in live TV and lashes out at a fan, incorrectly thinking she is behind the gifts. She is later sacked and is told she will never appear on TV again. Mitzeee continues to get creepy gifts when it is revealed that Mercedes is Mitzeee's stalker because Mercedes believes that Mitzeee and Riley are going out. Mitzeee is still in love with Riley when she gets a modelling gig to model for the grand prix. She asks Riley whether she should go and he says she should and so she does hoping that she can forget about Riley. When Mercedes begins messing with Mitzeee's mind, playing games and hiding things in her flat, Mitzeee begins to lose grip on reality and begins taking some new tablets for
anxiety. During a confrontation with Mercedes, Mitzeee is knocked unconscious and Mercedes stabs herself in the stomach and lies that Mitzeee stabbed her. After trying to escape the country and failing, Mitzeee is arrested on suspicion of
GBH and she is imprisoned awaiting trial. While in prison, Mitzeee is bullied by her cellmate and a gang of girls who demand Riley's money or they will kill her. Mitzeee asks Riley for £5,000, to which he reluctantly accepts and gives them the money. Coincidentally, Mercedes' mother
Myra McQueen (
Nicole Barber-Lane) is also in prison at the same time as Mitzeee, and warns her that she will pay for "stabbing" Mercedes. Mitzeee, alongside cellmate Lauren, escape prison when being transferred to a psychiatric unit. Nancy helps Mitzeee. Lauren decides to return to prison. Mitzeee visits Riley and they have sex. Riley intends to call off his engagement to Mercedes. Bobby goes missing and Mercedes accuses Mitzeee of kidnapping him. It is revealed that Mercedes had taken Bobby. When Mercedes threatens to kill herself and Bobby, Riley is forced to phone Mitzeee and tell her he no longer loves her. Mitzeee is distraught but is later surprised when Riley returns to the village looking for her. Riley is accidentally shot by Walker. Mitzeee phones for an ambulance and is subsequently arrested. She is able to visit Riley in hospital and is devastated as he dies with her at his bedside. Mitzeee is arrested following Riley's death and Carl visits her in prison where she tells him the charges for attempted murder will be dropped but she will still be charged with escaping prison. Mitzeee is later released and returns to the village. Mitzeee's sister,
Maxine Minniver (
Nikki Sanderson), who had previously stolen Mitzeee's fiancé Gary, arrives in the village. Mitzeee is angry at Maxine's arrival and slaps her. Mitzeee discovers that Riley left
The Dog in the Pond public house to her in his will. Maxine apologises to Mitzeee and pays the tenants on Mitzeee's old flat to move out. Mitzeee forgives Maxine and they move in together. At Mercedes' trial, Mercedes' lawyer
Jim McGinn (
Dan Tetsell) suggests Riley was abusive towards Mercedes and stabbed her. He also suggests that Riley killed Lynsey. Mercedes backs up Jim's claims. Mitzeee gives evidence although admits she can not be certain that Mercedes stabbed herself or knocked her out as she was unconscious. Mitzeee pleas with Mercedes to tell the truth although she does not. The jury give a not guilty verdict and Mercedes is released. In Mitzeee's final week in Hollyoaks, Carl returns and explains he wants to kill
Simon Walker (
Neil Newbon) in revenge for killing Riley the year prior. At first Mitzeee refuses to help but later agrees to help Carl in his plans. Mitzeee later discovers that she is five months pregnant with Riley's baby, much to her delight after thinking it was Tyson's. Mitzeee then attends a live broadcast on Sky News with
Eamonn Holmes and tells Carl about the news while he is in a hotel preparing to kill Walker. Carl is filled with joy, but still goes after Walker to kill him. The next day, it turns out Carl did not kill Walker but felt like he should have done. He then tells her he must leave Hollyoaks to prevent him from going through with this plans to get rid of Walker once and for all and he asks Mitzeee to join him. She considers and then agrees to it and after an emotional farewell with Maxine and Nancy, she and Carl depart Hollyoaks to live in America and look after Riley's children, escaping Walkers evil plans. Shortly after leaving, Mitzeee decides to sell The Dog, leaving the Osbournes distraught until they find the money to buy it. Maxine later gets a text from Mitzeee telling her she had a baby boy named Phoenix. In July 2016, Mitzeee calls Maxine to tell her not to trust Warren, after what he has done to her. In July 2017, Mercedes receives a letter from Mitzeee stating that Bobby wants her to adopt him and, after initially agreeing to sign the documents, Mercedes changes her mind and travels to America to stay with Carl and Mitzeee in the hopes that Bobby can be a part of her life. Two years later in 2019, Maxine decide to stay with Mitzeee along with her daughter
Minnie while she recovers from
Munchausen syndrome. ==Reception==