Following open auditions held the previous year, the Judge's Auditions took place early in 2008, within
London,
Manchester,
Birmingham,
Cardiff,
Glasgow and
Blackpool. With the success of the previous series, the production team decided to expand the show's filming schedule to include more episodes. This led to the addition of two more episodes for auditions and two more live episodes for semi-finals, in turn leading to a direct increase in the number of semi-finalists that the judges could move beyond the auditions stage of the competition. Both the judges and the presenters who took part in the first series agreed to return for the second series, leading to no significant changes in the panel or hosts. Of the participants that took part, only forty made it past this stage and into the five live semi-finals, with eight appearing in each one, and ten of these acts making it into the live final. The following below lists the results of each participant's overall performance in this series: Key: | | | • Ages denoted for a participant(s), pertain to their final performance for this series. • The latter value pertains to the age of the dog, as disclosed by its owner.
Semi-final summary : Buzzed out | Judges' vote | : | |
Semi-final 1 (26 May) Semi-final 2 (27 May) Semi-final 3 (28 May) Semi-final 4 (29 May) • Cowell pressed Holden's buzzer during Vizage's performance.
Semi-final 5 (30 May) Final (31 May) : | • The results did not declare any other position than that of the winner, 2nd place, and 3rd place. ==Ratings==