Barry Humphries jokingly confuses Dermot O’Leary for Philip Schofield

'I Feel Very Irish': Dermot O’Leary on Returning to His Roots | Lorraine

Dermot O'Leary & Mel's Secret 90s Romance | Mel Giedroyc: Unforgivable | Dave

Arsenal fan Dermot O'Leary PREDICTS Arsenal Premier League title DYNASTY!

Dermot O'Leary Saves Simon Cowell?! | Murder In Successville | The Laugh Track

David Walliams wants to jump Dermot O'Leary - BBC

The “Send To All” Message That Nearly Got Dermot O'Leary CANCELLED | Michael McIntyres Big Show