Template:Character Laura Mercer is J.P.'s older sister and Paula's daughter. She is an nurse living with her mom. She helps her mother take care of J.P. She first appeared in "Sunday Clothes". She is voiced by Fortune Feimster.
Laura is pale skinned, with red hair and black, shiny eyes, like her brother, J.P. She has black, full eyelashes, and her hair is typically held up with a ponytail and a white hair clip. She wears a white shirt under her celestial hospital uniform and grey slippers.
Laura seems to be very strong, responsible, brazen, direct, and still clearly loves her brother very much. She is body-positive, referring to J.P.'s body as "beautiful" on more than one occasion. However, she will challenge her brother when necessary, such as when he was about to enter his house while dripping wet
She also tries to help her brother, for example, when she told him that he must be more mature for his age and that he must put an end to some of his habits, such as dirtying all his clothes or making the stream dirty.
|1. "The Legend of the Library":||Absent|
|2. "Locked Out Cold":||Appears|
|3. "Beyond the Overpass":||Unknown|
|4. "Sink or Swim Team":||Unknown|
|5. "The Quick Name":||Unknown|
|6. "The Chef's Challenge":||Unknown|
|7. "The Sparkle Solution":||Unknown|
|8. "Better Than You":||Unknown|
|9. "The Dream Team":||Unknown|
|10. "Fire & Ice":||Unknown|