Tom Tinn-Disbury is an experienced illustrator who started his career in film and animation before concentrating on his art. He has written and illustrated a number of picture books, including The Caveman Next Door and the upcoming My Summer With Grandad.
Stacey Hart is an experienced counsellor and grief professional who has been supporting children for years. For the last 10 years she has worked at one of the country's leading bereavement charities, Grief Encounter. She has made multiple public appearances, including on This Morning, where she spoke as a professional on coping with grief.