"Why so formal, Knuckles? You can call me Lien-Da. Aren't we friends? And family? Right, step-sister?"

Lien-Da is a major antagonist in Archie Comics' Sonic the Hedgehog comic book series, exclusively appearing in the Pre-Super Genesis Wave timeline.

She is a 33-year-old mobian echidna and is the current leader of the Dark Legion, having inherited the title after Dimitri's incapacitation. She is sometimes called "Kommissar" (which is German for "commissioner," which probably refers to her rank in the Legion).