Kai Widdrington (born 23 August 1995) is an English dancer and choreographer. In 2010, he was the Junior World Latin American champion. In 2012, he reached the final of the sixth series of Britain's Got Talent. Between 2017 and 2020, he was a professional dancer on the Irish version of Dancing with the Stars, and in 2021, he became a professional dancer on the BBC show Strictly Come Dancing.
Widdrington is of part Chinese descent. His maternal grandfather is half Chinese people and said to have been at school in the same class as actor Bruce Lee.
In 2018, Widdrington was partnered with camogie player Anna Geary. They reached the final of the show, finishing as joint-runners up alongside Deirdre O'Kane and John Nolan.
In 2019, Widdrington was partnered with teenage actress Demi Isaac Oviawe. They were eliminated in week seven of the competition, finishing in eighth place.
In 2020, Widdrington was paired with Miss Universe Ireland 2018, Gráinne Gallanagh. On 15 March 2020, it was announced that the scheduled semi-final had become the final due to precautions around the COVID-19 pandemic halting production early. Gallanagh and Widdrington were one of the four couples in the final, and they finished as runners-up to winners Lottie Ryan and Pasquale La Rocca.
| 1 | Katherine Lynch | 6th |
| 2 | Anna Geary | 2nd |
| 3 | Demi Isaac Oviawe | 8th |
| 4 | Gráinne Gallanagh | 2nd |
Highest and Lowest Scoring Per Dance
| American Smooth | Anna Geary | 22 | ||
| Cha-cha-cha | Katherine Lynch | 18 | Demi Isaac Oviawe | 10 |
| Charleston | Anna Geary Gráinne Gallanagh | 30 | Katherine Lynch | 23 |
| Contemporary Ballroom | Anna Geary Gráinne Gallanagh | 27 | ||
| Foxtrot | Aoibhín Garrihy1 | 28 | Demi Isaac Oviawe | 14 |
| Jive | Anna Geary | 29 | Katherine Lynch | 19 |
| Paso Doble | Gráinne Gallanagh | 25 | Anna Geary | 22 |
| Quickstep | Gráinne Gallanagh | 25 | Katherine Lynch | 21 |
| Rhumba | Anna Geary | 24 | Demi Isaac Oviawe | 16 |
| Salsa | Anna Geary | 30 | Demi Isaac Oviawe | 20 |
| Samba | Gráinne Gallanagh | 22 | Katherine Lynch | 16 |
| Showdance | Anna Geary | 30 | ||
| Tango | Anna Geary | 28 | Gráinne Gallanagh | 18 |
| Viennese Waltz | Gráinne Gallanagh | 30 | Demi Isaac Oviawe | 21 |
| Waltz | Katherine Lynch | 18 |
| 2 | Waltz | "If You Go Away" | 6 | 6 | 6 | 18 | No Elimination |
| 3 | Cha-cha-cha | "Express Yourself" | 6 | 6 | 6 | 18 | Safe |
| 4 | Samba | "Voulez-Vous" | 5 | 5 | 6 | 16 | Safe |
| 5 | Foxtrot | "Summertime" | 7 | 8 | 7 | 22 | Safe |
| 6 | Quickstep | "You're the One That I Want" | 7 | 7 | 7 | 21 | Safe |
| 7 | Foxtrot | "Big Bad Handsome Man" | 9 | 10 | 9 | 28 | No Elimination |
| 8 | Charleston | "Cabaret" | 7 | 8 | 8 | 23 | Safe |
| 9 | Jive | "Proud Mary" | 6 | 6 | 7 | 19 | Eliminated |
| 2 | Tango | "Rebel Rebel" | 6 | 8 | 7 | 21 | No Elimination |
| 3 | Samba | "New Rules" | 6 | 6 | 6 | 18 | Safe |
| 4 | Contemporary Ballroom | "Let It Go" | 9 | 9 | 9 | Safe | |
| 5 | Pasodoble | "Titanium" | 7 | 7 | 8 | 22 | Safe |
| 6 | Tango | "Green Light" | 9 | 9 | 9 | No Elimination | |
| 7 | Charleston | "Bang Bang" | 10 | 10 | 10 | Safe | |
| 8 | American Smooth | "Achy Breaky Heart" | 7 | 7 | 8 | 22 | Safe |
| 9 | Rhumba Team Dance | "Secret Love Song" "Party Rock Anthem" | 8 8 | 8 8 | 8 9 | Safe | |
| 10 | Jive Swing-a-thon | "Time Warp" "You Can't Stop the Beat" | 9 | 10 | 10 | 33 | Safe |
| 11 | Foxtrot Salsa | "Dancing in the Moonlight (It's Caught Me in Its Spotlight)" "Don't Stop the Music" | 8 10 | 8 10 | 8 10 | Safe | |
| 12 | Tango Charleston Freestyle dance | "Rebel Rebel" "Bang Bang" "This Is Me" | 9 10 10 | 10 10 10 | 9 10 10 | Runners-up |
| 2 | Cha-cha-cha | "Cut to the Feeling" | 3 | 3 | 4 | No Elimination | |
| 3 | Foxtrot | "After All" | 4 | 5 | 5 | 14 | Safe |
| 4 | Salsa | "One Night Only" | 6 | 6 | 8 | 20 | Safe |
| 5 | Rhumba | "Dance with My Father" | 5 | 5 | 6 | Safe | |
| 6 | Salsa | "Dance Again" | 8 | 8 | 9 | 26 | No Elimination |
| 7 | Viennese Waltz | "Fallin'" | 7 | 7 | 7 | 21 | Eliminated |
| 2 | Tango | "Bang Bang" | 6 | 6 | 6 | 18 | No Elimination |
| 3 | Jive | "Dear Future Husband" | 6 | 7 | 7 | 20 | Safe |
| 4 | Salsa | "(I've Had) The Time of My Life" | 7 | 7 | 7 | 21 | Safe |
| 5 | Contemporary Ballroom dance | "Unstoppable" | 9 | 9 | 9 | Safe | |
| 6 | Quickstep | "Out of Our Heads" | 7 | 8 | 8 | 23 | No Elimination |
| 7 | Quickstep | "Paper Rings" | 8 | 8 | 9 | 25 | Safe |
| 8 | Viennese Waltz | "The Nutcracker" | 10 | 10 | 10 | Safe | |
| 9 | Paso Doble Team Dance | "I'd Do Anything for Love (But I Won't Do That)" "Physical" | 8 8 | 9 8 | 8 8 | 25 | Bottom two |
| 10 | Samba Rock-Til-You-Drop | "Wonder Woman Theme" "Happy Days" | 7 | 8 | 7 | 24 | Safe |
| 11 | Foxtrot Charleston | "Falling" "Dance Apocalyptic" | 9 10 | 9 10 | 9 10 | 27 | Runners-up |
For the twentieth series, Widdrington was partnered with Loose Women panellist, Kaye Adams. They were the first couple to be eliminated from the series after losing the first dance off to Matt Goss and Nadiya Bychkova. On 30 November 2022, it was announced he would dance with Alexandra Mardell for the 2022 Strictly Christmas Special; they eventually won the competition with a perfect score on their quickstep.
For the twenty-first series, Widdrington was partnered with television presenter and journalist, Angela Rippon. They finished 7th, being eliminated in week 9 after losing the dance off to Bobby Brazier and Dianne Buswell.
In 2024 Widdrington returned for the twenty-second series but was not paired with a celebrity partner. He went on to win the Christmas Special dancing a Cha-cha-cha with Welsh drag queen Tayce, in December 2024, with Tayce becoming the first drag queen to compete on Strictly Come Dancing. The pair scored maximum points from all four judges.
For the twenty-third series, Widdrington was partnered with television personality Vicky Pattison.
| 19 | AJ Odudu | 3rd | 34.6 |
| 20 | Kaye Adams | 15th | 21.5 |
| 21 | Angela Rippon | 7th | 30.1 |
| 23 | Vicky Pattison | 8th | 28.8 |
Highest and Lowest Scoring Per Dance
| American Smooth | AJ Odudu | 35 | Angela Rippon | 30 |
| Argentine Tango | 34 | |||
| Cha-cha-cha | Angela Rippon | 28 | Vicky Pattison | 23 |
| Charleston | AJ Odudu | 39 | Kaye Adams | 22 |
| Couple's Choice | 36 | Vicky Pattison | 33 | |
| Foxtrot | AJ Odudu Angela Rippon | 31 | 24 | |
| Jive | AJ Odudu | 34 | 27 | |
| Paso Doble | Angela Rippon | 32 | AJ Odudu | 28 |
| Quickstep | AJ Odudu | 40 | Angela Rippon | 26 |
| Rhumba | 39 | 31 | ||
| Salsa | 30 | |||
| Samba | Vicky Pattison | 29 | AJ Odudu | 28 |
| Showdance | ||||
| Tango | Vicky Pattison | 39 | Kaye Adams | 21 |
| Viennese Waltz | AJ Odudu | 40 | ||
| Waltz | 38 | Angela Rippon | 28 |
| 1 | Jive | "Gold Dust" | 8 | 8 | 9 | 9 | No Elimination | |
| 2 | Foxtrot | "Tears Dry on Their Own" | 7 | 9 | 7 | 8 | 31 | Safe |
| 3 | American Smooth | "I Have Nothing" | 8 | 9 | 9 | 9 | 35 | Safe |
| 4 | Samba | "Don't Go Yet" | 5 | 7 | 8 | 8 | 28 | Safe |
| 5 | Argentine Tango | "Edge of Seventeen" | 8 | 8 | 10 | 9 | 35 | Safe |
| 6 | Viennese Waltz | "Dangerous Woman" | 9 | 10 | 9 | 9 | 37 | Safe |
| 7 | Charleston | "Don't Bring Lulu" | 9 | 10 | 10 | 10 | Safe | |
| 8 | Paso Doble | "Game of Survival" | 6 | 7 | 7 | 8 | Safe | |
| 9 | Waltz | "Edelweis" | 9 | 10 | 10 | 9 | 38 | Safe |
| 10 | Couple's Choice | "Make Me Feel" | 9 | 8 | 10 | 9 | 36 | Safe |
| 11 | Salsa | "Rhythm Is Gonna Get You/Get on Your Feet" | 7 | 8 | 8 | 7 | Bottom two | |
| 12 | Quickstep Rhumba | "Sing Sing Sing" "Show Me Heaven" | 10 9 | 10 10 | 10 10 | 10 10 | 39 | Withdrew |
| 1 | Ballroom tango | "Voulez-Vous" | 6 | 5 | 5 | 5 | 21 | No Elimination |
| 2 | Charleston | "Music! Music! Music!" | 4 | 6 | 6 | 6 | Eliminated |
| 1 | Cha-cha-cha | "Get the Party Started" | 7 | 7 | 7 | 7 | 28 | No Elimination |
| 2 | Foxtrot | "You Make Me Feel So Young" | 8 | 8 | 7 | 8 | 31 | Safe |
| 3 | Quickstep | "Do-Re-Mi" | 6 | 7 | 6 | 7 | 26 | Safe |
| 4 | Rhumba | "Rise Like a Phoenix" | 8 | 7 | 8 | 8 | 31 | Safe |
| 5 | Argentine Tango | "Tanguera" | 8 | 9 | 8 | 9 | 34 | Safe |
| 6 | Charleston | "Theme from Murder, She Wrote" | 9 | 8 | 8 | 8 | 33 | Safe |
| 7 | Waltz | "Fascination" | 7 | 8 | 6 | 7 | 28 | Bottom two |
| 8 | Pasodoble | "Hung Up" | 8 | 8 | 8 | 8 | 32 | Bottom two |
| 9 | American Smooth | "Tea for Two" | 8 | 7 | 7 | 8 | Eliminated |
| 1 | Cha-cha-cha | "Best of My Love" | 5 | 6 | 6 | 6 | 23 | No Elimination |
| 2 | Foxtrot | "Rein Me In" | 6 | 6 | 6 | 6 | 24 | Safe |
| 3 | Charleston | "A Little Party Never Killed Nobody (All We Got)" | 5 | 7 | 6 | 7 | 25 | Safe |
| 4 | Samba | "La Isla Bonita" | 7 | 7 | 7 | 8 | 29 | Safe |
| 5 | Couple's choice | "Fight for This Love" | 8 | 8 | 8 | 9 | 33 | Safe |
| 6 | American Smooth | "Total Eclipse of the Heart" | 7 | 8 | 8 | 8 | 31 | Safe |
| 7 | Tango | "The Fate of Ophelia" | 9 | 10 | 10 | 10 | 39 | Safe |
| 8 | Jive | "Sound of the Underground" | 6 | 7 | 7 | 7 | Eliminated |
| 2022 | Alexandra Mardell | Quickstep | "Sleigh Ride" | 10 | 10 | 10 | 10 | 40 | Winners |
| 2024 | Tayce | Cha-Cha-Cha | "100 Degrees" | 10 | 10 | 10 | 10 | 40 | Winners |
| 2025 | Melanie Blatt | Jazz dance | "Santa Baby" | 8 | 9 | 10 | 9 | 36 | Participant |
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