Lindy and Nathan Nichols
The protagonists of Brain Juice. Two stepsiblings who ask their scientist uncle for something to improve their intelligence, leading to him giving them normal grape juice but calling it "Brain Juice" to boost their confidence, only for the drink to get replaced by Brain Energizer Potion by two aliens.
- Alliterative Name: Nathan Nichols.
- Be Careful What You Wish For: They become as smart as they wished, leading to alienating their classmates and even risking getting expelled from school with how much they flaunt their intelligence.
- Big Brother Instinct: They agree to go with the aliens instead when they try to kidnap Lindy's little sister Brenda.
- Book Dumb: They do very poorly in school, no matter how much they study.
- Brainy Brunette: Nathan has black hair and becomes this after drinking the Brain Juice.
- Cant Get Away With Nothing: First they're made fun of because they're not very smart. Then when they get smarter everyone still can't stand them and they get kicked out of school. It's like people look for an excuse to ostracize these kids.
- The Ditz: Why they asked their uncle for help to make them smarter. They were doing very poorly in school and basic tasks like assembling their five-year-old sister's dollhouse.
- Dumb, but Diligent: They study as much as they can, but are unable to get better marks.
- I Just Want to Be Normal: They beg their uncle not to tell anyone about what happened after they escape from the aliens so that they can live normal lives.
- Insufferable Genius: They become this as a result of drinking Brain Juice, taking every opportunity to show off how smart they are to the point of annoying others.
- Intelligence Equals Isolation: Their friends don't want to hang out with them anymore after they become intelligent, finding their constant showing off annoying.
- Obfuscating Stupidity: They pretend the effects of the Brain Juice are wearing off when the aliens enslave them, causing the emperor to decide they're useless as slaves with how dumb they are. It turns out they're just as smart as they used to be.
- Sibling Rivalry: Averted. They're step-siblings who get along quite well, probably because of how similar they are due to their lackluster intelligence.
- Significant Green-Eyed Redhead: Lindy is described as having auburn hair and green eyes, and is one of the protagonists.
