Big Brother UK Wiki
 Mary O'Leary
[[File:Mary O'Leary|250px|center]]
Born: 30 May, 1974
Hometown: Dublin, Ireland
Occupation: Psychic Advisor
Big Brother 6
Entered: Day 1
Exited: Day 8
Status: Evicted
Nomination(s) Received: 2

Mary O'Leary is a housemate from Big Brother 6.


Mary is a psychic advisor, writer, practising white witch from London and priestess of the Undead. She was born to a former priest and nun in Dublin, Ireland. She claims to remember a past life in Atlantis and that she has been abducted by aliens seven and half times.

Film: Dracula
TV Show: The Addams Family
Book: Mists Of Avalon
Food: Seafood

Quote: "I'm too spooky and witchy, I like to talk too deeply, have too many conspiracy theories and I'm too analytical. Basically I'm just 'Horribly Undead'."

Big Brother 6[]

On Day 1, Makosi was set a task to try and receive the most nominations from her fellow housemates. On Day 4, Makosi passed the task and was therefore immune from eviction.

On Day 5, Makosi was told that, as she had passed the task, she must choose which two housemates should face the public vote that week; she chose Mary as one of her nominations.

Mary was then the first to be evicted from the House on Day 8 with 60% of the vote.

Nominations History[]

Mary's Nominations History
Week Mary's
Nominations Against
1 Day 4 Saskia,
Day 5 Not
Evicted, Day 8

Post-Big Brother[]

After Big Brother, Mary had aspirations to become an actress and later said that being a witch was a very minor part of her personality. However, for a period of time, she was reportedly homeless and living on the streets.

Mary has since embarked on a successful herbal remedies business.



  • Thus far, Mary is the only ever self-proclaimed "white witch" to appear on Big Brother.
  • Mary is the fourth ever housemate to originate from the Republic of Ireland.
    • She is the third ever female housemate to originate from the Republic of Ireland.
    • She was the only Big Brother 6 housemate to originate from the Republic of Ireland.
  • Mary is the third ever victim of an eviction-resulting Launch Night twist.
    • In Big Brother 6, Mary faced the public vote as a result of Makosi Musambasi having sole power over who was nominated that week.
  • After receiving two nominations each, Mary and Lesley Sanderson are tied for having received the least nominations against them over any housemate that entered the Big Brother 6 House on Day 1.
  • At the age of 30, Mary is the oldest female Big Brother 6 housemate.