|Voice By||Josh Keaton|
Lucas is the level-headed best friend of Knack. Little is known about him at this time, but it is known that he is responsible for helping Knack discover his ability to absorb and transform into ice, setting in motion the developments of elemental transformation and powers.
Lucas is a young orphan boy, though his age is unknown. He is also the Doctor's assistant. Not much is known about his parents except that his mother was Ryder's sister. He uses a grappling hook and is quite athletic.
Lucas is a bright, cheerful young man. While most of the time he keeps his temper, the Doctor's antics can and will rile him up, causing him to speak out, much like his mother before him.
-It is hinted through dialogue that Lucas dislikes spiders.