Worf's adoptive brother, a Federation cultural observer who defied the Prime Directive to save a village on Boraal II.
Nikolai Rozhenko is the biological son of Sergey and Helena Rozhenko and the foster brother of Worf. A strong-willed man who once attended Starfleet Academy, he works as a cultural observer on Boraal II.
In Homeward, when Boraal II's atmosphere begins to dissipate, Nikolai secretly beams a village aboard the Enterprise and hides them in a holodeck simulation of their caves. Picard reluctantly agrees to find the Boraalans a new home. Nikolai, who is expecting a child with a Boraalan woman, chooses to stay with them. He was played by Paul Sorvino.