Fast Biter Trio
Fastbiters distracted by rock

Unknown (likely male and female)


Unknown (they may have drowned or reached the shore)


Olive green, dull purple, orange-red

Eye color

Gray, green, red





Voice actor

Pete Sepenuk

First appearance

The Lonely Journey

Last appearance

The Lonely Journey

These Fast Biters (also known as Sharpteeth) appear in The Lonely Journey as the main antagonists of the episode, though they only have a small role.


While Chomper is out in the Mysterious Beyond looking to teach its sharptooth inhabitants to be "nice", he walks into a cave to rest, and is confronted by the fastbiter trio. After a botched attempt at talking to them, they snarl at the young tyrannosaur and pursue him out of the cave.

During the chase, Chomper gives the red raptor the slip by going under a log too low to the ground for them to follow; immediately afterwards, the green and purple raptors crashing into their partner.

Later, the four theropods come to the edge of a cliff by a river; Chomper, a ways ahead of the fastbiters and out of sight, throws a rock to distract them, coaxing them to a steep slope and making them fall into the rapids below. They are not seen again afterwards, and it is unknown whether or not they drowned in the river or survived the ordeal.


  • The green Fast Biter look similar to Thud, one of Red Claw's subordinates, except that this Fast Biter's green color is more dull.
  • It is unknown as to why the Fast Biters didn't understand Chomper when he spoke in Sharptooth language. They were possibly hungry and were following their predatory instincts.
  • Incidentally, these three Fast Biters have the same coloring as the sharpteeth from The Land Before Time X: The Great Longneck Migration.


Sharpteeth in The Land Before Time, in order of appearance:
Sharptooth (character) | Chomper | Papa Sharptooth | Mama Sharptooth | Fast Biters (The Time of the Great Giving) | Ichy and Dil | Swimming Sharptooth (Journey Through the Mists) | Swimming Sharptooth (The Mysterious Island) | Sharptooth Flyer Family (The Mysterious Island) | Plated Sharptooth (The Mysterious Island) | Meanest Sharptooth | Fantasy Sharpteeth (Lone Dinosaur Song) | Browridge Sharptooth (The Secret of Saurus Rock) | Canyon Sharptooth | Fast Biters (The Stone of Cold Fire) | Sharptooth (The Big Freeze) | Sharptooth Swimmer (Journey to Big Water) | Belly Dragger (The Great Longneck Migration) | Sharptooth Pack (The Great Longneck Migration) | Fast Biters (Invasion of the Tinysauruses) | Sailback Sharptooth (The Great Day of the Flyers) | Hookthumb Sharpteeth (The Wisdom of Friends) | Red Claw | Screech and Thud | Fantasy Sharpteeth (Rhett's Story) | Fast Biters (The Lonely Journey) | Sharptooth Family (The Lonely Journey) | Belly Draggers (The Amazing Threehorn Girl) | Female Sailback Sharptooth | Sharptooth Mom | Featherhead Sharpteeth | Horned Sharptooth | Minor Sharpteeth |
See Also
Main families
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