Appearance: Saiyajins come in all sizes, from the very short (Vegita looks to only stand about 5'4" or so.) to the very tall (Nappa was much taller then Vegita and may have been a good 7' in height.). Their skin color varies, ranging from pale pink to dark tan or gray. Saiyajins all look to have thick black hair and brown tails. Eye color varies, but tends to be dark. Their warrior lifestyle means that all Saiyajin's are very strongly built and in excellent physical shape. Kat is short but stocky and very well-built. She has wavy black hair that she usually ties in back, and she normally dresses in practical clothes (her second appearance showed her with fatigue pants and combat boots). Kat speaks with a weird accent that sounds somewhere between Japanese and Irish. Saiyajin clothing tends towards battledress at all times. This is a black (or dark blue) bodysuit, with gloves and boots and body armor. The body suit's exact coverage varies, and sometimes only covers the torso, leaving the arms and legs bare. The gloves are optional, while the boots come in a wide variety of styles. The armor is usually white and will cover the torso, shoulders, and sometimes the upper legs.

Fighting Skills: As Freezer's hired mercenaries, Saiyajins are trained in standard combat skills. Katherine was about on par with Abby during 2001 (meaning that when Abby was played during 2001 or before, her physical characteristics would have been reduced to this level), but her training made her combat style somewhat rigid, a fact that Abby herself commented on. Kat was so focused on the attack that she paid no attention to anything else, and could be taken prey by a surprise maneuver. On the other hand, being raised by Saiyajins did give Kat a bit more “book learning" than Abby, and she seemed to have actually read the “Saiyajin's Handbook."

Powers: Saiyajins have a variety of innate racial powers. They are very long lived, have long monkey-like tails that are strong enough to support their own weight, and are physically very strong and powerful. They are all trained in the arts of combat from a young age and have impressive energy (i.e. chi) powers and taught how to pilot a simple spaceship. Kat may only have had an energy blast, but most Saiyajins have several such attacks, usually with such advantages as autofire, explosion, or area of effect. Other chi powers include various forms of characteristic aids, usually with some sort of extra time limitation. Naturally, the most impressive power of a Saiyajin is their ability to assume a "were-monkey" form when exposed to a full moon. This form is powerful enough to ravage whole cities, and in concert with several other monkeys, can effectively destroy the population of a planet. Since virtually all Saiyajins work for Freezer (or did), they all wear armor and the combat scouters.