Two is a genderless, sentient mathematical numeral species called an ‘Algebralien’, being a common species known as an Integer. His body is a skirret green color resembling the arabic number two ( 2 ) with his limbs being a lighter hue of his body and also having the ability to extend both his arms and legs. Two is known by the others to be quite optimistic and carefree, not really putting that much effort into things and is often just slacking off when it comes to doing tasks. his personality is mostly just confident, charismatic, smooth, and energetic. Being basically the opposite counterpart of his best friend ; Eight .

Eight is also a genderless, sentient mathematical numeral species called an ‘Algebralien’ while also being the same, common Integer subspecies as Two. His body is a jumbo gray color resembling the number eight ( 8 ) with no holes alongside his limbs being a lighter hue of his body, there are rumors around the Equation Playground saying that Eight was tough and is made out of pure lead but nobody knows if it's actually true or whatnot. Eight is quite deadpan and has an aloof demeanor unlike the rest, He's known to be a part of a club known as ‘The Even Numbers ClubHouse’, often hanging out in a treehouse with his best friends ; Two and Ten .