Main Characters
- Dudley Puppy
- Kitty Katswell
- The Chief
- Keswick
- Verminious Snaptrap (antagonist)
- Peg Puppy
Cameos/Minor Characters
- Ollie
- Larry
- Francisco
- Bad Dog
- Bird Brain
- The Chameleon
- Mad Cow (male) (intro)
- The Easter Bunny
- Flower Stand Cat
Prev. Ep.'s Appearances /// Snap Dad's Appearances \\\ Next Ep.'s Appearances
| ♦ Season 1 Appearances ♦ | Season 2 Appearances >> | ||||||||||||||
| #01 | Purr-fect Partners | #12 | Internal Affairs | #23 | Kid Stuff | #34 | The Curse of King Mutt | ||||||||
| #02 | Doom-mates | #13 | Chilly Dog | #24 | Super Duper Crime Busters! | #35 | Bored of Education | ||||||||
| #03 | Mall Rat | #14 | The Doomies | #25 | Mission: Really Big Mission | #36 | Snappy Campers | ||||||||
| #04 | Operation: Happy Birthday | #15 | Thunder Dog | #26 | Frisky Business | #37 | Lucky Duck | ||||||||
| #05 | Snapnapped | #16 | Snap Dad | #27 | Hot Dog | #38 | Guard Dog | ||||||||
| #06 | Mom-A-Geddon | #17 | Iron Mutt | #28 | Disobedience School | #39 | Dog Save The Queen | ||||||||
| #07 | Cruisin' For A Bruisin' | #18 | The Wrong Stuff | #29 | The Dog Who Cried Fish | ||||||||||
| #08 | Puppy Love | #19 | Watch Dog | #30 | Doom and Gloom | ||||||||||
| #09 | Toast Of T.U.F.F. | #20 | Dog Dish | #31 | Law and Odor | ||||||||||
| #10 | Share-A-Lair | #21 | Mind Trap | #32 | The Rat Pack | ||||||||||
| #11 | Dog Daze | #22 | Forget Me Mutt | #33 | Booby Trap | ||||||||||