Arnold

Arnold was a gerbil belonging to Connelton Primary School. In March 2018, April Windsor asked headteacher Jessie Grant if she could look after Arnold, to her father Marlon Dingle's dismay. However, Jessie agreed, but Arnold ended up dying under Marlon's supervision. Believing he had killed the gerbil, Marlon got his friend Paddy Kirk to replace him. Jessie came over soon later to tell Marlon that she discovered that Arnold had cancer and it was surprising that he was still alive.

Jessie soon found out that Arnold had been replaced when she took him to the vets and found out that he was actually female - and pregnant!