Singer Olly Murs has appeared twice on deal or no deal. His first appearance came in 2007 before he was famous and won just £10. He faired even worse in a 2012 celebrity special winning just 50p for his chosen charity.
The identity of the mysterious "Banker" is never revealed - he is credited as playing "Himself" in the closing credits. One theory is that it is the show's producer, Glenn Hugill.
On the episode broadcast on 1 April 2006, the credit for The Banker was "Richard Oldman". This is probably an April Fool for a "rich old man".
During the recording of one show. One of the contestants had unexpectedly fallen unwell and had passed out and recording had to be ceased. Noel Edmonds asked the audience to stay where they are and to be patient, so the paramedics could assess the contestant and half-an-hour later, recording continued and the contestant's husband was shown live footage of the contestant and that she was alright, much to the delight of Edmonds and the audience.
On a couple of occasions, the money amounts have become unstuck and fallen into the box. On another the amount was never placed into the box, causing the producers to reshuffle the remaining amounts, including the player's box.