Lieutenant Worf

• Klingon, son of Mogh (S03E17); orphaned at the Khitomer massacre and raised by human parents Sergey and Helena Rozhenko (S04E02); first Klingon officer in Starfleet.
• Chief of security and tactical officer from season 2 after Tasha Yar's death (Memory Alpha).
• Accepts discommendation (loss of honour) to protect the Empire when Duras' family frames Mogh for Khitomer (Sins of the Father S03E17).
• Younger brother Kurn, raised by Lorgh (Sins of the Father S03E17, Redemption S04E26 · S05E01).
• Fathered Alexander with K'Ehleyr, a half-human Federation emissary; after Duras murders her, Worf kills Duras (The Emissary S02E20, Reunion S04E07).
• Honour restored by Gowron during the Klingon civil war (Redemption S04E26 · S05E01).
• Paralysed when his spine is crushed and considers ritual suicide; saved by experimental surgery (Ethics S05E16).
• Adoptive human brother Nikolai (Homeward S07E13); shifts through parallel quantum realities (Parallels S07E11).
• Romance with Deanna Troi in season 7 (Parallels S07E11, Eye of the Beholder S07E18); prefers prune juice, 'a warrior's drink'.

• Alexander Rozhenko: son (Memory Alpha: Alexander Rozhenko · Memory Alpha: Worf)
• K'Ehleyr: mate, mother of Alexander (Memory Alpha: K'Ehleyr · Memory Alpha: Worf)
• Kurn: brother (Memory Alpha: Kurn · Memory Alpha: Worf)
• Helena Rozhenko: adoptive mother (Memory Alpha: Helena Rozhenko · Memory Alpha: Worf)
• Sergey Rozhenko: adoptive father (Memory Alpha: Sergey Rozhenko · Memory Alpha: Worf)
• Nikolai Rozhenko: adoptive brother (Memory Alpha: Nikolai Rozhenko · Memory Alpha: Worf)
• Counselor Deanna Troi: romance in season 7 (Memory Alpha: Deanna Troi · Memory Alpha: Worf)
• Gowron: political ally (Memory Alpha: Gowron · Memory Alpha: Worf)
• Duras: enemy, killed by Worf (Memory Alpha: Duras, son of Ja'rod · Memory Alpha: Worf)
• Lieutenant Natasha 'Tasha' Yar: predecessor as security chief (Memory Alpha: Worf)

One cell per episode in broadcast order; darker means more lines, an outlined cell is an appearance without dialogue. Hover for the episode, click to open it.

• Parallels (S07E11): 114 lines
• New Ground (S05E10): 107 lines
• Firstborn (S07E21): 103 lines
• Birthright, part 2 (S06E17): 88 lines
• The Emissary (S02E20): 82 lines