Date of Birth: 
About Holly Allen
- On June 10, 2019, CBS reported that the Big Brother 21 cast would be revealed on June 17, 2019 on Big Brother live feeds to viewers with a CBS All Access subscription.
- Former Big Brother HouseGuest Jeff Schroeder returned to host pre-season interviews with the cast after being replaced by Celebrity Big Brother alum Ross Mathews for the previous season.
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