Over the years Oscar the Grouch has had many pets. His diverse menagerie includes various dogs, a cat, a pig, several elephants, and a donkey. His favorite pet is his worm, Slimey. Similar to a pet, Oscar builds Charles the Robot to follow his every command.
Betsy
dog
dog
Boxy
rectangle
rectangle
Cranky
rottendoodle
rottendoodle
Daisy
skunk
skunk
Esme
cow
cow
Fernando
flea
flea
Fido
cat
cat
Fluffy
elephant
elephant
Gus
goat
goat
Iago
donkey
donkey
Lassie
goat
goat
Mud Pie
hamster
hamster
Preposterous
puppy
puppy
Slimey
worm
worm
Spot
pig
pig
Stinky
seagull
seagull
Tiny Tim
cat
cat
Other pets
- Episode 0524, Episode 0590 and Episode 0619 — Frank, a fly.
- Episode 0700 — Rosebud, a skunk.
- Episode 0793 — Grover offers to become Oscar's pet, however it doesn't work out.
- Episode 1055 — Freddie, a fly.
- Episode 1170 — Pet termites.
- Episode 1266 — Moby Richard, a whale.
- Episode 1269 — Chloris, a cow.
- Episode 1441 — Oscar feeds multiple cows, horses, chickens, and pigs in his can.
- Episode 1448 — Seymour, a hippo
- Episode 1449 — Oscar tells Telly and Susan that he has a whole flock of moths in his can, which he gives holeless shirts to munch on.
- Episode 1489 — Anthony, a tiger
- Episode 1552 — Myrna, a cow
- Episode 1555 — Sophie, a skunk
- Episode 1586 — Dick and Jane, goats
- Episode 1618 — Hedda, a hippo
- Episode 1740 — Oscar mentions he has hippos who reside in his swimming pool.
- Episode 1853 — Garfield, a rhino
- Episode 2971 — Jezabel, a chicken; and Fred, a fish.
- Episode 2269 — Moby Jane, a whale (mentioned).
- Episode 3664 — Portia, a rhino
- Elmo's World: Farms — an entire farm in his can.
- Episode 4088 — As Oscar leaves the scene, he tells Slimey he has to go milk his buffalo.
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