The introduction of the Salvatore brothers' past lover and Elena’s doppelgänger , whose influence drives much of the season's mystery.
Supporting characters like Bonnie Bennett discovering her powers as a witch and Caroline Forbes being pulled into the supernatural world. The Vampire Diaries - Season 1
The primary plot arc involving a group of vampires trapped beneath a church since 1864. The introduction of the Salvatore brothers' past lover
The central tension between Elena, the brooding Stefan, and the unpredictable Damon. the brooding Stefan
The first season of , which premiered in 2009 , serves as the foundation for the supernatural drama set in the fictional town of Mystic Falls , Virginia.