Boris is a male blue butterfly fish and the first character to play with. He grows the fastest of all characters.

But his disadvantage is, that his tiny mouth prevents him from the suck ability.

Layla is a female yellow queen triggerfish and the 2nd character. Her levels give you the suck ability.

Eddie is a female green anglerfish. She could emit light using the bulb-like object attached to her head, she's the 3rd character in game.

Peter is an African Pompano and the 4th character to play with. From the start of his levels, there are cuttlefishes.

Harry is a male blue and green humphead wrasse and the 5th character. His levels introduce Pelicans in the level Plunging Peril.

Goliath is a male Great White Shark and the last and 6th character ingame. He's the biggest character ingame and the first to fight the intruder.

The intruder is a extraterrestrial fish in FF2 which must be defeated by the main characters with the exception of Edie. Goliath is the first to fight him. Only Boris, the butterfly fish, is able to eat him. After that, he becomes a playable character by starting the levels again.
Sometimes his silhouettes passes through the end of final levels for most of the characters, where that antagonist is curious and goes to investigate.

Special
Force Field
Weakness
Tail bite,
Shrinkshrooms.

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Cuttlefish

Habitat
Pirate Lair to Deep Sea.
Special
Ink splash predators.
Weakness
Power-ups, mine bomb.
Immune
Looney Lure, Shrinkshroom.
Cuttlefish is a undersea creature which while feel threatened is ink splashing, but when he is splashing he is
turning opposite side.

Once the character is splashed with ink is making him/her is making fish spinning and wobbling, which can go into predators.

While NPCs are ink splashed, they hurry to go opposite way.

They appear 12 times in the game, or 1/5 of total levels.

Cuttlefish looks like squids.

Marlins are one of the biggest fish in-game. They are big in Harry and Peter levels and medium in Goliath levels, but never small, unless you use a Shrinkshroom. They will never come like the barracuda or The Intruder. They first appear in Wrasse Reef. large ones eat herring, john dorys, humphead wrasse-pufferfish and are preyed on by leopard sharks and pelicans. The medium ones eat tuna and are preyed on by orcas. They're drawn out by the Intruder in Jellyfish Jig before being evicted for the last time in Reefo Relaxo. They appear 6 times in total, or in 1/10th of the levels.

Normal minnows are gray and edible. Also like all the small fish in the game, they can come in schools.

Leopard sharks are one of the first top level predators the player can encounter in Feeding Freny 2, like most creatures featured in the game, they are affected by Shrinkshrooms and other power-ups.

Leopard sharks in the game possess a blunt head, olive colored eyes, a moody look on their face, dark brown blotches on it's skin and brown-colored fins, two gill slots on the sides of the head.

The leopard sharks are only preyed upon Great white shark, Killer whales, and by the Intruder.

Leopard shark is one of Feeding Frenzy 2's predators with the largest diets, containg herrings, Cods, Lionfish, Humphead wrasse, Tuna, Cuttlefish and others. They first appear in the game's second stage, "Succulent Starfish", and last appearing in the level "Madhouse" , they're seen a total of 25 times in the game.

Killer whale or ''Orca'' is the third biggest creature in the game, only passed out by Goliath great white shark at full size and the Alien Intruder at full size. Orcas appear in 8 levels in the game, or 2/15 in total.

They appear in Goliath and Layla levels, but they are only edible by Goliath. Layla's huge form is just one level smaller than an orca. They eat pompano, cuttlefish,leopard sharks, marlins, tuna , pufferfish, john dorys, barracuda and herring. They are driven out by the Intruder in Hazards Abound, but manage to come back with their last level being Tricky Treats before they're driven out once again.