She is the daughter of Mr. Lockjelly, Jonathan Long's Boss and is Jake's age. She only appears in the episode  in Season 2 but never makes another appearance. Jake meets her at a time when he is between both Rose and Danika, and they have a connection. She seemed interested in Jake, but nothing much develops.
She has freckles on her face and long brunette hair in a ponytail held with a purple rubberband. She wears an orange and yellow long sleeved shirt purple skirt, and brown shoes.
- Bite Father, Bite Son (only appearance)
- "Hi, Marnie Lockjelly"
- "So, I'll see you there tonight?"
- "Don't you think you've done enough father/son bonding for one day?"
- "Hey Jake, you've missed my party tonight."
- "I don't want an apology, just a rain check."
- ↑ http://www.behindthevoiceactors.com/tv-shows/American-Dragon-Jake-Long/Marnie-Lockjelly/
- ↑ http://www.imdb.com/name/nm0609055/?ref_=sr_1
- ↑ http://www.jeffgoode.com/tv/americandragon/characters/marnie.htm
- ↑ http://www.imdb.com/character/ch0358531/?ref_=tt_cl_t8
- ↑ Bite Father, Bite Son