Ashley's Big Brother 4

Big Brother 4, also known as Ashley's Big Brother 4, is the fourth season of Ashley's Big Brother, which began on January 3, 2014 and ended a month later on February 4. Fourteen housemates entered the house on launch night, with a further "wildcard" housemate being voted in by the public on Day 4, and a replacement housemate entering on Day 13, bringing the total to sixteen. Seth J. controversially emerged as the winner on finale night with 42.3% of the public vote.

Colleen and James returned to compete in Big Brother 8: All-Stars.

Production
After entering the house, it was revealed to the housemates that the public have been crowned House Captain, and would be able to make a collection of choices throughout the first week. Their first decision was to nominate a housemate for eviction, with the housemate of their choice joining the three housemates who received the most nominations on Day 2. Their second decision was to save one of the four housemates from a housemate eviction, where each of the housemates voted to evict one of the three who remained up for eviction. The public's final decision was to vote one of three wildcard housemates into the house; this being James. Week 4 featured the first premature departure from the house when Lucia decided to walk. Lucia was replaced the following week by Katie, who was given a secret mission to guess two housemates who would receive the most nominations that week. As she guessed one housemate correctly, only her two nominations faced the public vote alongside the Captain's nomination; the housemates were unaware of this mission. A further twist took place in Week 7, which was called "Reverse Nominations". The housemates nominated face-to-face, but were asked to save two housemates of their choice, with the two housemates with the most nominations being granted immunity from the public vote. The House Captain was also able to choose a housemate that would automatically be saved from eviction. At the end of the week, a double eviction took place in which the two housemates with the least votes to save were evicted.

Format
Each week lasts four days and comprises of four different events: the House Captain competition, nominations, the Power of Veto competition and an eviction of a housemate at the end of the week. The House Captain competition takes place on the second day of the week and decides which housemate would be in power for that week. This housemate is given immediate immunity from eviction for the week, and holds the responsibility of nominating one other housemate for eviction. The housemates begin nominating soon after the competition has finished; they are given 22 hours to visit the Diary Room and nominate two other housemates for eviction, and the two or more housemates who receive the most nominations face eviction alongside the Captain's nomination. Following the nominations reveal, the housemates compete in the Power of Veto competition, which allows the winning housemate to save one of the nominated housemates for eviction and replace them with someone of their own choice, or choose not to use it at all. Following the announcement of the final nominees, a poll opens in which the public decide which housemate should be evicted. The eviction take place on the final day of the week, and the cycle continues.