Big Brother has revealed the 16 houseguests who will be competing on Season 21 this summer!

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This season's cast includes a preschool aide, a Broadway performer, a petroleum engineer, a therapist, among others.

It also includes Holly Allen, the ex-girlfriend of former The Bachelor: Winter Games villain Luke Pell. Holly was the on-again, off-again girlfriend Luke reconciled with last year and used as the explanation for why he "ghosted" on Stassi Yaramchuk following their appearance on The Bachelor Winter Games.

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The couple broke up for the final time shortly after Holly moved to Nashville to live with Luke, who has been the subject of repeated "player" and "cheater" accusations in the past, and allegedly learned Luke wasn't the person she thought he was.

The Summer 2019 edition of Big Brother, once again hosted by Julie Chen, is set to premiere with a two-night event on Tuesday, June 25 and Wednesday, June 26 from 8-9PM ET/PT.

Subscribers of CBS All Access had the opportunity to get to know each houseguest by watching a live stream of their interviews on Monday morning beginning at 8AM ET/PT.

Details regarding house decor and twists for the new Big Brother season will be announced shortly.

Following the first two episodes of the new season, Big Brother will air a one-hour broadcast on Sunday, June 30 at 8PM ET/PT on CBS.

Big Brother will continue to air three episodes every week this year.

Beginning on Wednesday, July 10, the show will move to Wednesday and Thursday nights from 9-10PM ET/PT.

The Sunday night broadcast, however, will remain in its 8PM ET/PT timeslot once the schedule changes in July, and the first live eviction will air on Wednesday, July 3.

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Big Brother will continue to follow a group of strangers living together in a house together that's outfitted with 94 HD cameras and more than 113 microphones, recording their every move 24 hours a day.

Each week, someone will be voted out of the house, and the last houseguest remaining will win the grand prize of $500,000.

Big Brother is produced by Allison Grodner and Rich Meehan for Fly on the Wall Entertainment, in association with Endemol Shine North America.

Below is the list of 16 houseguests who will be competing on Big Brother's 21st season, and CLICK HERE to see a photo gallery of the houseguests and learn more about them.

- Holly Allen, a 31-year-old wine safari guide from Lander, WY, who currently resides in Los Angeles, CA

- David Alexander, a 29-year-old photographer from Atlanta, GA

- Nicole Anthony, a 24-year-old preschool aide from Long Island, NY

- Tommy Bracco, a 28-year-old Broadway dancer from Staten Island, NY

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- Kathryn Dunn, a 29-year-old digital marketing executive from Irving, TX, who currently resides in Dallas, TX

- Kemi Faknule, a 25-year-old marketing strategist from Elkridge, MD, who currently resides in Brooklyn, NY

- Cliff Hogg III, a 53-year-old petroleum engineer from Houston, TX

- Ovi Kabir, a 22-year-old college student from Oakridge, TN, who currently resides in Knoxville, TN

- Nick Maccarone, a 27-year-old therapist from Sewell, NJ

- Jack Matthews, a 28-year-old fitness trainer from Chicago, IL, who currently resides in Tampa, FL

- Jackson Michie, a 23-year-old server from Nashville, TN, who currently resides in Los Angeles, CA

- Jessica Milagros, a model in her thirties from Chicago, IL, who currently resides in Oak Park, IL

- Christie Murphy, a 28-year-old boutique owner from Staten Island, NY, who currently resides in Keyport, NJ

- Sam Smith, a 31-year-old truck driver from West Nanticoke, PA, who currently resides in Mountain Top, PA

- Analyse Talavera, a 22-year-old college soccer star from Northridge, CA, who currently resides in Simi Valley, CA

- Isabella Wang, a 22-year-old public health analyst from Mount Olive, NJ, who currently resides in Los Angeles, CA

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