Unarguably the king of self-doubt, Karl is a housefly suffering from a chronic case of neurosis. The youngest member of the family can often feel undervalued, but when you're the youngest member from a family of two million, family issues can reach boiling point.

A gas repair fly in his early 30s, Karl has clocked up an impressive track record on his psychiatrist's couch. Work, family, domestic and the down-right surreal, none of the occurrences in Karl’s life go unmentioned as he tries to understand why every bad thing imaginable keeps happening to him.

The butt of most jokes, Karl is teased mercilessly by everyone in the house.