I decided to make a chart depicting specific books where specific main characters interacted.
- The books are represented with numbers (e.g. Fetch-22 = 8).
- If the characters have interacted in every book, it is instead represented with a plus sign (+).
- If they've interacted in every book starting from a book, it is represented with a #+.
- If they've interacted in practically every book, it is represented with ~+.
- If they haven't interacted at all, it is represented with a question mark (?).
Feel free to correct me if there are any inaccuracies.
| Dog Man | Petey | Li'l Petey | Chief | Sarah | Zuzu | 80-HD | |
|---|---|---|---|---|---|---|---|
| Dog Man | Redundant | ~+ | 3+ | + | 4, 9 | 2, 3 | 4+ |
| Petey | ~+ | Redundant | 3+ | 3-5 | 1, 10 | 4, 10 | 3-5, 9, 10 |
| Li'l Petey | 3+ | 3+ | Redundant | 5 | 10 | 8 | 3+ |
| Chief | + | 3-5 | 5 | Redundant | ~+ | ? | 6 |
| Sarah | 4, 9 | 1, 10 | 10 | ~+ | Redundant | ~+ | 10 |
| Zuzu | 2, 3 | 4, 10 | 8 | ? | ~+ | Redundant | ? |
| 80-HD | 4+ | 3-5, 9, 10 | 3+ | 6 | 10 | ? | Redundant |