Marblehop is a medium-large sized tabby point tom with eyes the color of mint. His fur is thick, which is typical of a PeakClan cat, and medium-long (and it is also probably quite soft). He has tufted ears and a quite fluffy tail. He has no visible scars on him at the moment, as most he has recieved have been covered by his fur. He has a few splotches on the left side of his muzzle (viewer's right).

Marblehop naturally holds his head up high, and has a confident walk most of the time. Beneath all his fur he is lean and muscular, with long legs.

Marblehop is an energetic young adult tom who is hard-working and genuine in his desires to be an asset to the clan, though he still may have a little bit of growing up to do. He is very playful and a bit of a prankster, though he doesn’t always pick his moments the best. He can get himself in trouble by saying or doing something witty without truly thinking of the consequences. However, he has a true grit about him, and hre is resilient in his efforts to complete what he is assigned to do. He’s not afraid to ask his fellow clan mates for advice on how to do things. He is constantly wanting to improve himself, both in his physical abilities and supportiveness of his clanmates. His goofy (sometimes immature) attitude may initially rub some cats the wrong way, though ironically, comments about being inept or incompetent or being assumed so by his antics truly upset him. Still, he tries to bring an upbeat attitude to the everyday tasks of clanlife, and still being so young, he has much more to learn.

Marblehop has a soft spot for the younger cats of the clan, and indeed, he likes to take on the role of a fun/cool/protective older brother to the apprentices, especially his own. He has a laidback approach to teaching, although he doesn't disregard the importance of the lessons he teaches. On the contrary he is quick to explain why a certain thing is important to clan life, but the way he likes to teach is usually in the form of a game or competition, making training less formal. He tries his best, and wants to be a good influence for the younger cats in the clan, as well as make a good impression on the older ones.

Marblehop was born to two PeakClan parents (who have not been idenitified as of now). Then Marblekit, he displayed a very mischevious nature, even more than he is now, and he got into trouble often. He seemed to get into everything, and likely was brought back to camp and punished after running away a couple times to "explore".

Marblekit was always a friendly kit, and did enjoy being around his clanmates and listening to the stories they would tell as they returned from patrols or hunting. However, the closer he grew to apprenticehood, the more unruly he became. Seeing this, at his apprentice ceremony, the newly appointed Marblepaw was given the senior warrior Falconfang as his mentor. Falconfang displayed a calm and collected, firm approach to mentoring, and tried to be patient with the little ball of energy. However, the last straw for her was when Marblepaw put blackberries into several warriors' nests and turned their pelts varying shades of blues and purples. After that, Falconfang put her paw down and became the strict warrior she was known to be; she worked him from dawn until dusk, sending him on patrols or training sessions all day long, if not with her then with another warrior, essentially giving him hardly any time (or energy) to pull pranks or goof off.

Because of Falconfang's tough mentoring, Marblepaw's pranks did in fact slow down to a minimum, and as a young apprentice he found himself dreading training with constantly sore muscles and a very busy schedule, envious of the fun he felt his other felow apprentices were having, upset he was stuck with the stick-in-the-mud old mentor. However, the older he became and the more he grew in size, experience and maturity, the more he actually began to look foward to his busy schedule. In addition, his relationship with Falconfang became less strained and more friendly, the pair developing more of a close relationship instead of a strictly formal one. Plus, do to the high levels of work he would do in a day Marblepaw developed an impressive amount of stamina, even to the point of volunteering to do additional tasks for the clan after his training for the day was done. He even discovered a love for the many patrols that once were a punishment from Falconfang, looking forwards to naviagting the rocky peaks of the territoy.

By the time of Marblepaw's warrior assessment, Marblehop had matured greatly from the troublesome kit that he was before. After passing his final warrior's assessment of navigating a trail chosen by his mentor and his leader, Ryestar, he earned his warrior name, Marblehop. An eager young warrior, he continues to be eager to please and constantly trying to do the best he can for his clan, though he definitely still has his goofy moments. And now, with an apprentice of his own (though he was shocked that at only 15 moons he would recieve an apprentice), he does his best to be an example to her, and teach her to do the best for their clan as well.