Sergey Rozhenko Sergey Rozhenko was a Human male who served as a Starfleet chief petty officer and warp field specialist during the 24th century . History . Rozhenko was married to Helena Rozhenko and had one son , Nikolai Rozhenko . ( ) In 2346 , Rozhenko served aboard the under Captain when the ship answered a Klingon distress call following the Romulan attack on the Khitomer outpost . In the wreckage of the outpost , Sergey discovered a young Klingon named Worf . Through an act of kindness , Sergey and Helena fostered Worf . ( ) In 2347 , the Rozhenko family was residing on the farming colony of Gault where Worf and Nikolai grew up . ( ; ) After some time , they returned to Earth . Sergey occasionally took his sons camping in the Ural Mountains . ( ) Worf eventually left his family to attend Starfleet Academy . Sergey was extremely proud of Worf when he earned his commission . ( ) The Rozhenkos continued to live out their retirement in the same dwelling for a number of years to follow . ( ) Sergey had a fascination with starships . His warp field expertise was mainly on the ships . Later , he collected all the specifications and diagrams of the ships . ( ) In 2367 , the Rozhenkos visited the while it was docked at Earth Station McKinley following its encounter with the Borg . They transported aboard from Earth Station Bobruisk . During their visit , they received a full tour of the " Enterprise " - D ( excluding some areas due to repairs ) , and later both parents shared their concern and showed their support for Worf ' s recent discommendation following a conversation with Guinan . ( ) Later that year , Sergey and Helena met the " Enterprise " - D at Starbase 73 to take their grandson , Alexander , back to Earth . They intended to provide him with a home and a family following the death of his mother , K ' Ehleyr , something Worf felt he could not provide on his own as he was both single and a career officer . ( ) By 2374 , Alexander had decided to join the Klingon Defense Force . Sergey and Helena were not happy about the decision , most likely because of concerns over his safety and perhaps sensing that their grandson ' s motives had more to do with getting his father ' s attention then actually serving the empire . But , when they realized Alexander was determined to enlist , they supported him as they always had . ( ) Memorable quotes . " " Don ' t call me sir . I used to work for a living . " " < br > " " So we walked into the school and we don ' t know what to expect . Is Worf hurt ? Is he in some kind of trouble ? The door opens and there is our little seven year old sitting on a chair and glaring across the room at five teenage boys , all of them with bloody noses . " " < br > " " And then the principal looked up and said , please tell me he ' s an only child . " " < br > " " We have taken enough of the commander ' s time . " " < br > " " Mother , father , I wish you would be a little more reserved while you are on board . " " < br > " " I must bear my dishonor alone . " " < br > " " That is not true . " " < br > Appendices . References . Rozhenko ' s only appearance was in the episode though he was referenced a number of times in subsequent episodes of and " " . Background information . Sergey Rozhenko was played by actor Theodore Bikel . The script for " Family " gave the pronunciation of Rozhenko ' s name as " sir - GAY rah - ZHEN - koh " . It went on to describe the character as being of Russian descent , carrying himself with pride and dignity , " " compact , barrel - chested . . . a retired Starfleet Chief growing old gracefully . " " When Costume Designer Robert Blackman designed Sergey Rozhenko ' s outfit , Blackman was already aware that the character would be played by Theodore Bikel . In order to give the impression that Sergey and his wife Helena could have raised Worf , Blackman wanted the Rozhenkos ' clothing to make them look as though they were " sturdy , strong Human beings , both emotionally and physically . " He said about Sergey in particular , " " If you look at him and see how the outfit was put together , it resonates to a certain degree the Starfleet uniform . There ' s a kind of yoke and a sleeve of leather , bits that make you think of the uniform subliminally , I think . I " hope . " ( ) The presence of Sergey and Helena Rozhenko in " Family " was of some concern to the production staff , who felt Worf ' s parents might come across as comically " Jewish " . Michael Piller ultimately felt the finished episode " trod the line " of universal humor . ( " " , p . 143 ) Apocrypha . Sergey Rozhenko appeared in the " " novel " The Art of the Impossible " , which told the story of Worf ' s rescue and fostered by him and his wife , Helena , following the massacre at Khitomer , in 2346 . In the " Day of Honor " novel " Honor Bound " , Sergey was said to be living in Mirnee Doleena , Belarus , in 2373 .