Andrew "Andy" Bernhardt was an episode writer for Thomas & Friends. He also works as a psychologist within the criminal justice system. He has written a book on the subject of fathers and sons. He has also written for other children's shows such as "Big and Small", "Rainbow", "Numbertime", "Sheeep", "The Hoobs" and "Get Well Soon". He is currently working as a senior lecturer at the Univeristy of Hertfordshire.