Alexander 'Dr Xand' van Tulleken is a British doctor and TV presenter. Along with his identical twin brother, Christoffer 'Dr Chris' van Tulleken, they are best known for presenting the children's TV series "Operation Ouch!" and have hosted a range of programmes on issues such as diet, binge drinking and health.

Filmography

• 2023The Gunpowder Plot: Countdown to Treason — Presenter
• HealthCheck UK Live
• The Great Plague — Presenter
• The Twinstitute — Himself - Presenter, Creator
• 2018Dying For Help — TV presenter
• 2018The Truth About Carbs — Presenter
• How to Lose Weight Well
• Horrible Histories
• Who Do You Think You Are?

Appearances as themselves (24)

• 2025Unwrapping King Tut: Secrets of the Mummy — Self
• Dr Xand's Con or Cure — Self - Presenter
• 2023The Great Fog of 1952 — Self - Presenter
• The Great Stink of 1858 — Self - Presenter
• The Vikings — Self
• Sunday with Laura Kuenssberg — Self – Doctor and Broadcaster
• The Great Smog: Winter of '52 — Self - Presenter
• The Weakest Link — Self - Contestant
• Tsunami — Self - Presenter
• Michael McIntyre's The Wheel — Self - Expert
• Morning Live — Self
• 2020Surviving the Virus: My Brother & Me — Self
• The Hit List — Self - Contestant
• Expedition Volcano — Himself - Presenter
• Richard Osman's House of Games — Self - Contestant
• The Human Body: Secrets of Your Life Revealed — Self
• The Last Leg — Self
• Operation Ouch! — Himself - Presenter
• Celebrity Antiques Road Trip — Self - Participant
• Would I Lie to You? — Self
• The One Show — Self
• 8 Out of 10 Cats — Self
• Question Time — Self - Panellist
• Horizon — Self - Presenter