|Date of Birth||December 31, 2000|
|Living Town||Dorsal Fintown|
|Main Weapon(s)||His mind|
|Relative(s)||Amorine (young cousin)|
Lucas is always ready to help Dux out of a problem he can't solve. As he's small, Lucas can be easily scared, though. He doesn't like to be bullied.
Lucas is a small, teal Gillard with green, rounded fins, each with stripe-like indentations. He sports large, round glasses with a black frame. Without glasses, people can see two strands of hair atop of Lucas' head.
Lucas will help Dux in his challenge received from the Terrible Mariners. When Dux can't solve the puzzle on time five times, the player can choose to use Lucas' help to fix it, and go to the next level. It will cost 100.000 point of the player's score, and the puzzle will remain unsolved.
In Multiplayer, Lucas is usually played by Player 2, but the player can also choose someone else.