|Pamela Anderson as Big Brother 12 (UK)'s celebrity house guest.|
|Big Brother Gameplay|
|Description||A person that enters the house for a specific number of days.|
A House Guest is a special guest who enters the Big Brother house for a specific number of days without being nominated or evicted. Most of the house guests enter the house to perform a task but they can be sent in as part of a twist depending on each season.
- In Big Brother (US) and Big Brother Canada, the term is used differently as the term Houseguest refers to the residents of the house.