Big Brother 5 was the same as Big Brother 4, in regards to the Power of Veto, Head of Household, Nomination process, eviction, and jury. This season had 14 houseguests, so they were evicted at a quicker rate than before, sometimes multiple evictions in one week.
In the fifth season, only six players would participate in the Power of Veto competition. The HOH and both nominees would choose a houseguest to also compete. This new format was utilized by Nakomis Dedmon to backdoor Jase Wirey.
- Only Six Power of Veto Players: Unlike in previous seasons where all Houseguests competed in the Veto Competition, only six players would be allowed to compete; The Head of Household, the two nominees, and three players selected by each of them respectively.
- Project DNA: Do Not Assume: There were two sets of relatives that may or may not know are playing together.
- Twin Twist: Adria & Natalie: Although the houseguests were informed that some of their fellow houseguests had identical twins, they were not informed that Adria Klein had a twin. In fact, Adria and her identical twin Natalie Carroll would switch places in the diary room from time to time during the first four weeks. They were not discovered, so Natalie was let into the house as a permanent player in Week 5.
- Unknown Relatives: Nakomis & Michael: Nakomis Dedmon and Michael Ellis did not know that they were biological siblings until they talked and figured out they were related. Their fellow house guests knew this as well, but did not break up the possible duo. In fact, Michael cast the sole vote to evict Nakomis, but she ended up voting for him to win the grand prize.
- Double Eviction Week: On week 9, for the first time in Big Brother (US) history, two houseguests would be evicted within one week. This version of the Double Eviction was carried out through the next two seasons.
|Week 1||Week 2||Week 3||Week 4||Week 5||Week 6||Week 7||Week 8||Week 9||Week 10||Week 11|
|Day 63||Day 65||Day 78||Finale|
|Drew||Mike||Lori|| ||Marvin||Jase||Will||Natalie||Adria|| Vetoed|
|Michael||Mike||Lori||Holly||Marvin||Marvin||Will|| Rep||Marvin|| No|
|Scott||Marvin||Adria|| Rep|| ||Michael|
|Karen||Mike|| Rep||Holly||Scott||Jase||Marvin||Natalie||Adria||Marvin|| Rep|| ||Drew|
|Marvin||Mike||Holly|| Rep|| ||Natalie||Drew|
|Adria||Mike||Lori|| Rep||Scott||Jase||Will|| Vetoed|
|Jase|| ||Lori||Adria|| Vetoed|
|Key:||Nominated||Rep: Replacement Nominee||POV Holder||HOH||Jury Member||Evicted|
- Natalie switched and played as Adria for the first 4 Weeks before becoming an official Houseguest on Week 5.
Houseguests partnered up to compete in the first HOH competition. As there was an uneven number of players, Will Wikle chose to sit out. Scott Long ultimately outlasted the other houseguests, meaning he and his partner Jase Wirey had won the competition. To decide which of the two would be the HOH, Will asked Jase a question about himself. If Jase answered correctly he would be HOH, if he answered incorrectly, Scott would be HOH. Jase answered correctly, earning the title of HOH for the week. During the week, The Four Horsemen alliance was formed; it consisted of Jase, Scott, Drew Daniel and Michael Ellis. After hearing that Mike Lubinski had been trying to form an alliance to go against The Four Horseman, Jase decided to nominate him and Nakomis Dedmon for eviction; with Nakomis being a pawn. After Jase threw the competition, Scott won the POV. He chose to leave Jase's nominations the same. Mike was evicted in a unanimous vote.
Following Mike Lubinski's eviction, Marvin Latimer won the "Majority Rules" HOH competition. He chose to nominate Holly King and Lori Valenti for eviction, referring to them as the "queens" of the house. Jase Wirey won the POV competition, narrowly beating Lori. Jase chose to save Holly from the block, and Marvin named Karen Ganci, Lori's closest ally, the replacement nominee. Lori was evicted in a seven to two vote.
Following Lori Valenti's eviction, Drew Daniel won the "High/Low" HOH competition. He chose to nominate Holly King and Nakomis Dedmon for eviction, and stated Holly had the "power of persuasion" and needed to go that week. Despite this statement, Jase Wirey later convinced him that Holly needed to stay that week, and The Four Horsemen devised a plan to keep her. Nakomis won the POV and decided to remove herself from the block. Drew chose Adria Klein as the replacement nominee. Despite Jase's attempts to keep her, Holly was evicted in a seven to one vote.
Following Holly King's eviction, the houseguests competed in the "I Have a Secret" endurance HOH competition. After a nine hour struggle, Diane Henry won the competition, becoming the first female HOH of the season. Targeting the "two strongest competitors" in the house, Diane chose to nominate Jase Wirey and Scott Long for eviction. Jase won the POV and chose to use it on himself; Diane named Marvin Latimer his replacement nominee. Scott was evicted in a four to three vote; only receiving the votes of The Four Horsemen.
Following Scott Long's eviction, the "Twin Twist" was revealed to the HouseGuests and Natalie Carroll entered the game. Nakomis Dedmon won the "Home Is Where the Answer Is" HOH competition. While planning for nominations, Nakomis realized that her alliance now had the numbers to complete the "Six Finger Plan". Nakomis planned to put up two people from her alliance, and they would each pick another member from her alliance to play for the POV. This ensured that all six players in the Veto competition were on Nakomis' side. Then, the Veto would be used and Jase Wirey would be nominated in their place. This allowed them to nominate Jase and not allow him to play in the POV competition. Nakomis nominated Diane Henry and Marvin Latimer, setting the stage for her plan. Drew Daniel won the POV. He later chose to save Diane from the block, and Jase was named the replacement nominee. Jase was evicted from the house in a six to one vote.
Following Jase Wirey's eviction, Adria Klein won the "The Puck Stops Here" HOH competition. She nominated Marvin Latimer and former alliance member Will Wikle for eviction. She later revealed her intentions were to divide the house into three different sections and determine people's true loyalties. Adria went on to win the "A Very Veto Christmas" POV competition. Despite Will hoping his former ally would save him with the Veto, Adria chose to leave her nominations intact. Will was evicted from the house in a four to three vote after Adria had to break a tie.
Following Will Wikle's eviction, Nakomis Dedmon won the "Who Said It?" HOH competition. She nominated Adria Klein and Natalie Carroll for eviction, due to Adria's betrayal the previous week. Adria won the POV and decided to remove herself from the block. Nakomis chose her half-brother, Michael Ellis, as the replacement nominee. Natalie was evicted in a four to one vote; only receiving the vote of her twin-sister, Adria.
Following Natalie Carroll's eviction, Marvin Latimer won the "Putting for Power" golf based HOH competition. He nominated Adria Klein and Michael Ellis for eviction. Karen Ganci was the winner of the POV competition. Karen later chose to not exercise the power, despite Adria's pleas. Adria was evicted in a unanimous four to zero vote.
Following Adria Klein's eviction, the house learned it would be a Double Eviction Week, and that someone else would be leaving the following day. Drew Daniel then won the "Chemical Reaction" HOH competition. He later chose to nominate Diane Henry and Marvin Latimer for eviction, due to a disagreement he had had with both the nominees. Diane won the POV competition. Despite claiming that she would not use the Veto, Diane chose to remove herself from the block. At the Veto ceremony, Nakomis Dedmon was the named the replacement nominee. Marvin was evicted from the house by a unanimous vote.
Following Marvin Latimer's eviction, Nakomis Dedmon won the "Ready, Set, Gone" HOH competition. She chose to nominate Drew Daniel and Michael Ellis for eviction. Before the Veto competition, Diane Henry hatched a plan with Drew and Michael to evict Karen Ganci from the house. The plan was for Diane to win the Veto, use it on one of the nominees, and evict Karen at the eviction. After Michael and Drew helped her win the competition, Diane won the POV. She chose to use the POV on Drew, and Nakomis had no option but to name Karen as the replacement nominee, as Karen was the only eligible houseguest. Karen was evicted in a unanimous two to zero vote.
Following Karen Ganci's eviction, Drew Daniel won the "Before or After" HOH competition. He nominated Diane Henry and Nakomis Dedmon for eviction. When Michael Ellis won the "Socket to Me" Final POV competition, it gave him the sole vote to evict either Diane or Nakomis. He used the veto on Diane. With no available replacement nominee, his half-sister Nakomis; was evicted by default.
The final HOH competition is played out in three challenges, to give the remaining houseguests a fair shot at securing a place in the final two. In the "Earthquake" endurance portion of the Final HOH competition, Drew Daniel beat out Diane Henry and Michael Ellis. Michael later won "Twisted Twosomes", the second part of the final HOH competition. Drew and Michael faced off in the "Encore Presentation" final portion of the Final HOH competition, with Drew reigning victorious. He chose to evict Diane.
- This was the first season to feature the Golden Power of Veto as a permanent element in the game.
- This was the first season where only six players were allowed to compete in Veto competitions.
- This was the first season to feature the Fast Forward week, which would become a recurring event in later seasons.
- This season, Big Brother 8, Big Brother 13, Big Brother 17 and Big Brother: Over The Top are the only seasons to feature family members playing against each other (Michael and Nakomis, Adria and Natalie, Dick and Daniele, Liz and Julia, Alex and Morgan).
- This is the only season represented in All-Stars to not have at least one of its representatives reach the Jury stage.
- This season gave birth to the backdoor plan which would become a classic, mandatory strategy used in all of the seasons since.
- Nakomis came up with this strategy, labeling it the "six finger plan".
- This is the first season a male was evicted first.
- This is the first season a male evictee received 10 votes.
- This is the first season where females won 4 HOHs in a row. This would happen again in Big Brother 8, Big Brother 10, Big Brother 13, Big Brother 17, Big Brother: Over The Top and Big Brother 20.
- For this specific season, this occurred weeks 4 through 7.
- This is the first season where females won more PoV's than male. This would happen again in Big Brother 6, Big Brother All-Stars and Big Brother 8.
- It is also the first season where two females won the POV twice (Diane and Adria).
- This is the first season where there was an eviction where nobody voted to evict.
- This is the first season to have the winner beat the runner-up by only a single vote.
|United States Seasons|
|English||Broadcast||1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 · 21|
|Celebrity||1 · 2|
|Big Brother Seasons|