Dr Ranj Singh is an NHS paediatrician and one of the resident doctors on ITV's This Morning. He also co-created the BAFTA-award-winning CBeebies series Get Well Soon, and co-presents ITV's prime-time Save Money Lose Weight. Ranj was a hugely popular contestant on 2018's Strictly Come Dancing. Off-air, his work can be found in numerous magazines and on websites where he gives expert opinion and advice on a range of physical and mental health matters.

Sue Graves has been a freelance children's author for more than 17 years. She has written over two hundred books for children from pre-school up to 15+ years. She writes fiction and non fiction, plays and poetry across the age ranges.

Sue loves reading all sorts of books and is at her happiest when she has a book in her hand. She also loves painting in watercolours, playing tennis and badminton and going for long walks in the country with her husband and children.