| Clue | Character |
| Kandi's father | |
| Judith's mother | |
| Housekeepers granddaughter | |
| Charlie's noisy neighbour famous singer appeared in two episodes | |
| Charlie's favorite ex-girlfriend (appeared in one season 1 and one season 2 episode) | |
| Charlie's older girlfriend ( an author ) | |
| Charlie and Alan's conceited and self-centred mother | |
| Charlie's mothers husband, who died | |
| Neighbor who Alan and Charile both liked (Former alcoholic) | |
| A judge and professor of his own age | |
| Charlie & Alan's high school classmate | |
| carpenter/handyman for charlie (famous singer) | |
| Charlie had a crush on her, and was engaged to for a short while | |
| The pizza guy | |
| The pharmacist | |
| Alan's ex girlfriend (and second ex-wife) | |
| Moves into the Harper beach house and now engaged To Charlie | |
| Herb's sister | |
| The shrink | |
| Housekeepers daughter | |
| Alan's receptionists mother | |