Rozen is the one who made the Rozen Maidens, he seeks for Alice, he was never heard, or seen his entire face in the anime, nor in the manga. Father appears to have acquired immortality through alchemy, and was forced to go by many aliases throughout time, such as the Count of St. Germain or Alessandro Cagliostro. In the anime, he has spoken to Shinku various times and indicated that besides battling, there is another way to end the Alice Game. The dolls refer to him as &#039;Father.&#039; 

As summer break arrives for the students, Jun Sakurada is busily studying on his own in the library, making up for time lost while he had confined himself to his home. Meanwhile, his Rozen Maiden doll, Shinku, has been having troubling dreams of late. The pain and sadness of defeating Suigintou was overwhelming, despite the inevitable battle they waged. After waking suddenly from a nightmare, she finds Suigintou's companion spirit wandering; upon giving chase, she discovers that the seventh Doll-- Barasuishou-- has awakened. She now realizes that Suigintou's fate may very well befall the other Dolls, for the appearance of the last Doll signals the beginning of the end of the Alice Games.
 
(Source: Anime News Network)

After enduring cruelty from his classmates, Sakurada Jun shuts himself away, preferring to live in solitude. Just when he thought he’d found peace in seclusion, a mysterious box disrupts his world, revealing the enigmatic Shinku—a living doll from the legendary Rozen Maiden collection. Shinku is beautiful yet demanding, and instantly declares that Jun shall be her new servant. Before he can wrap his head around the unusual events, they’re attacked! With no other options for survival, Jun agrees to a contract with Shinku and witnesses the true nature of her power.
 
Now sworn to Shinku, Jun is pulled into the dangerous world of “The Alice Game,” a deadly battle where only one of the seven Rozen Maiden dolls can emerge as the perfect doll. With danger lurking at every turn and Shinku’s high-maintenance personality to contend with, Jun is about to learn just how intense playing with dolls can be! 
 
(Source: Seven Seas Entertainment)

Father Rozen