Martian is a green alien with two pairs of arms, black eyes and white pupils, and two antennae on his head. He wears a brownish-red under-rim glasses and the same blue T-shirt that the other main protagonists have, which says "FACT ATTACK ADVENTURES" in red text with an anthropomorphic beaming lightbulb smiling and waving. He usually appears smiling. His skin is a green-lime gradient. He appears to be shorter than Facty and Lightbulb/Lighty. He also has cyan/light blue teeth and purple blood. He doesn't have hair.

Facty is a tall human with brown eyes, a constant hot pink blush, grayish-black glasses, and blond hair. They currently wear a blue t-shirt with a lightbulb character on it and words saying: Fact Attack Adventures, followed with red pants and green shoes. Facty is a very enthusiastic person who loves sharing trivia and it's implied they like to go travelling from "Via ferrata facts". But they also may have a short temper. Facty is curious, intelligent, observant, and upbeat. They love sharing random facts and noticing little details others miss. Facty is usually friendly and helpful, but can be talkative, and overly focused on facts, especially when something catches their interest. They/them pronouns, and loves saying "Let's get facty" in random situations. The biggest thing to capture is that Facty shouldn't sound like a walking encyclopedia. Their personality works better when the intelligence and silliness coexist. For example, instead of constantly saying: "According to scientific research, this phenomenon occurs because..." Facty would more naturally say something like: "Wait, seriously? That's actually really cool." Or if something ridiculous happens: *Stares for a second* ...Okay. I have several questions..." They can give someone an interesting fact, then immediately get distracted by something completely unrelated. Their humor also seems to work through deadpan reactions and oddly serious observations. He can sometimes switch emotions rather quickly like for example being angry to happy and cheerful

Lightbulb has a lightbulb for a head, green eyes, a constant blush, and has the same blue Fact Attack Adventures shirt worn by other major characters. He also wears green pants and red shoes, presumably sneakers. Vibe and Role: Known as the heart of the crew, bringing positive energy and bright ideas. Social Style: Often associated with an ESFJ personality type, focusing on social harmony and genuine altruism.