During his octorun, he became only the 7th person in Countdown history to get all 8 of his conundrums in his heats, with a combined time of 17.75 seconds, breaking Harvey Freeman's record which had stood since 1986. This helped him accrue his total of 923 points in his 8 wins, of which he scored a century in all of them. He has also been an Apterite since 2011 and is known for wearing a tea cosy on his head. Not only is he the first mouse to compete on Countdown, he is also the first to become an Octochamp, and the most racist mouse ever to appear on television.
His grandfather is Wilf Carey.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|6210||17/09/2015||P||Colin White||47 – 120||Thomas Carey||Jon Culshaw||Susie Dent||132|
|6211||18/09/2015||P||Thomas Carey||122 – 25||Billy Richardson||Jon Culshaw||Susie Dent||135|
|6212||21/09/2015||P||Thomas Carey||118 – 52||Alwyn Davies||Jon Culshaw||Susie Dent||129|
|6213||22/09/2015||P||Thomas Carey||109 – 100||Adam Curran||Sir Ranulph Fiennes||Susie Dent||131|
|6214||23/09/2015||P||Thomas Carey||116 – 37||Mary Fox||Sir Ranulph Fiennes||Susie Dent||121|
|6215||24/09/2015||P||Thomas Carey||119 – 80||Brendan Duke||Sir Ranulph Fiennes||Susie Dent||130|
|6216||28/09/2015||P||Thomas Carey||109 – 41||Chris Selman||Sir Ranulph Fiennes||Susie Dent||116|
|6217||29/09/2015||P||Thomas Carey||110 – 62||Lee Nixon||Sir Ranulph Fiennes||Susie Dent||131|
|6271||15/12/2015||QF||Thomas Carey||124 – 87||Matty Artell||David Baddiel||Susie Dent||136|
|6275||21/12/2015||SF||Thomas Carey||94 – 104||Matthew Tassier||Tim Rice||Susie Dent||153|