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"Get used to having me around, Ian. Because I ain't going nowhere!".
~ Dotty confronting Ian Beale in his own house

Kirsty Dorothy "Dotty" Cotton is a fictional character and a major antagonist in BBC British TV soap drama EastEnders. She first appeared in December 2008 and went on to serve as a supporting antagonist in 2009-2010, before returning as a anti-hero in 2019-2020, a major antagonist in 2021 and a anti-hero in 2022.

She is the daughter of Sandy Gibson and grandmother of Dot Cotton. At first her father appeared to be Dot's notorious son Nick Cotton, but it was later revealed that the latter's brother Tom Cotton is actually Dotty's biological father - despite Dotty and Tom initally having an uncle-niece relationship.

The character was portrayed by actress Molly Conlin as a little kid and is currently played by Milly Zero as a teenager.


She made her first appearance in 2008 and started of as a central character until her and Nick plotted to kill dot in 2009 and she later changed her mind and turned against her father and exposed him to everyone. Nick later warns Dot that Dotty is no angel and that the whole plot was Dotty’s idea but Dot does not believe him despite being suspicious. She later starts to bully Tiffany Butcher and begun to turn rebellious to dot and Jim which concludes that Nick was right. She spills water on Jim to make it look like he wet himself but Dot realises how much of a monster Dotty is and slaps her for her disrespect. Dotty calls the police on Dot and has her arrested until she changed her mind thanks to Sonia. Her mother Sandy makes her appearance and reveals to be alive and both her and Dotty leave in February 2010.

Kirsty "Dotty" Cotton returns back to Albert Square 9 years later in 2019 with her grandmother Dot Cotton who moves into Sonia Fowler home alongside Tiffany Butcher. However, Tiffany is not impressed to see over Dotty's arrival and they later have a short-tim feud afterwards as they both have words against each other until Sonia breaks up the confrontation.

Dotty starts following Tiffany's boyfriend Keegan Baker, as he is looking for a job around the markets. He later abandons this when local businessman Ian Beale starts throwing racial undertones at Keegan before getting punched in the face in his own restaurant.

Dotty meets a perverted stalker named Leo King, who was the son of twisted pedophile Tony King at the markets -as Tony had sexually abused Tiffany's adopted sister Whitney Dean in the past before his eventual deaths a few years later. Dotty forms a relationship with Leo but breaks up with him after discovering his true identity about his obsessive vendetta with Whitney.

At somepoint, Dotty and Bex plan to spend time at the boat party with other party-goers around the square begin to celebrate but the boat crashes when Phil Mitchell and Keanu Taylor were fighting, unintentionally pushed Keanu to the steering wheel making the boat crash to a vessel. It has been revealed that Dennis Rickman Jr. drowned to death while trying to get rescued by Ian. The devastation tragedy left all of Walford residence in shock.

Dotty is confronted by Ian after getting told off by his son Peter Beale at the arches who knows something about how Dennis really died. Dotty later finds a voicemail on a work phone hearing Dennis screaming for help after getting locked in a room by Ian. She shows the voicemail to Ian, who's left shocked by this discovery. Ian starts to blackmail Dotty about wanting the voicemail to go away. Dotty tells Ian that she wants the arches. This was short-lived when Ian deletes the voicemail.

Dotty is later arrested when police find drugs at the nightclub known as "e20" who were called by Ian, who gains the upper-hand on Dotty, but she's later released from prison and continues to get revenge on Ian who's still remaining large after the death of Dennis. Dotty would later find out that Ian is running the pub with Sharon, leaving Phil speechless and anguished.

In late 2021, she is secretly working with Rocky who is later revealed to be her Uncle Tom Cotton to steal Dot’s inheritance money from Sonia. However their plan was foiled on Christmas Day 2021 when Dotty reveals her plans to the Beales and Sonia. Tom was later revealed to be her father.


Dotty Cotton is portrayed as sadistic, arrogant, power-hungry and an opportunistic troublemaking liability. Sometimes she is cold-hearted but she shed tears during Dennis Rickman Jr's funeral, learned the truth about Nick Cotton's death and left defeated when she threatened Ian to tell Sharon about her son's death. Her biggest weakness is her mother Sandy Gibson, who's a drug addict. Dotty cared about her mother when she sends her money and saving her life from a drug overdose. Dotty also became a bit more caring with her boyfriend Vinny Panesar, who takes care of her when she was homeless and offered her to stay with his mother Suki Panesar at her flat and she agreed.



  • June Brown (who played Dot Cotton) was not happy with Dotty Cotton being recasted by Milly Zero. June would later leave the show for good because of this and the storylines she was given.
  • In Dot’s attempted murder plot storyline, Dotty served as the secondary antagonist until she redeemed herself into a anti-hero.