Suigintou (水銀燈 ,Suigintō
?, Mercury Lampe, Mercury Lamp):
Suigintou is the first of the Rozen Maiden collection

Medium: Megu
Artificial Spirit: Meimei
Magic:Suigintou's weapons are her ragged black wings. With their arrow-like feathers, she can conjure up a shield, a large sword, or even twin black dragons. Suigintou can also create destructive blue flames as a last resort in battle.
Hates: Shinku the 5th rozen maiden
Kanaria
The second Rozen Maiden doll, who is as adorable as she is eccentric. Not only does she constantly refer to herself in third person, but she also talks about taking her sisters' Rosae Mystica, though she repeatedly fails in her attempts to do so

Magic:Her artificial spirit, Pizzicato, is named after the
technique of playing orchestral instruments by plucking the strings, which she uses as a counterattack.
Likes: Spying on the other rozen maidens &
tamagoyaki, or Japanese thick omelet
Suiseiseki
The third Rozen Maiden doll, and Souseiseki's older twin. She and Souseiseki are both referred to as "gardeners" for their ability to communicate and tend not only to regular plants, but also to the "soul trees" of humans.

Medium: Jun
Artificial Spirit: Sui Dream
Magic: she can use her watering can to make plants emerge from the ground and manipulate them.
Loves: Her sister Souseiseki
Hates: The Alice game
Souseiseki
The fourth doll of the Rozen Maiden collection and Suiseiseki's twin, she possesses a sharpness in her speech that is similar to Shinku's, attacks ruthlessly in combat, and does not tolerate sub-par actions. Her appearance is not only the most masculine of the dolls, but her speech is also noted to be of the masculine form

Medium: Motoharu Shibasaki
Artificial Spirit: Lempicka
Magic:the shears (which is her primary weapon)
Loves: Her twin sister
Hinaichigo
The sixth doll, and the very embodiment of childishness. Although she can be ridiculously naïve and selfish she cares for her sister and Jun

Medium: Corrine / Tomoe / Jun (Indirectly)
Artificial Spirit: Berrybell
Magic:a series of attacks based on strawberry vines, which she mostly uses to restrain opponents
Likes:strawberry
daifuku,Nori's "Hanamaru Hamburger," which is a hamburger patty topped with a fried egg in the shape of a flower. She adores the puppet detective Kun Kun and drawing
Kirakishou
The true seventh doll of the Rozen Maidens.Kirakishou's right eye is missing. In the anime, a layer of tissue covers the right eye socket and a single white rose grows from it,Kirakishou's shoulders are not
ball jointed as the other dolls' are although this may be because she is an entity that only exists in the N-Field.

Medium: Odille Fosset (manga)
Artificial Spirit: Unknown. Kirakishou's artificial spirit has never been named or shown in any medium.
Magic:controls white rose vines, which she can manipulate into a spiderweb-like construct on which she crawls like an actual spider would.Kirakishou also has the ability to trap people's consciousness in crystals within the N-Field and Sea of Unconsciousness
Info taken from: Wikipedia