Dr Amir Khan is a full-time GP who has appeared on shows such as GPs Behind Closed Doors and is a regular on ITV's Good Morning Britain. His adult book The Doctor Will See You Now was a Sunday Times Bestseller.

Donough O'Malley is an award-winning illustrator from Ireland, who has illustrated over 30 children's books. When he is not drawing, he's walking on the beach in Brighton, where he lives with his wife and Bulgarian rescue dog.