Bonnie Bennet played Mejia Armant in the show The Vampire Diaries .
Additional storylines revolve around the other inhabitants of the town , most notably Elena 's younger brother Jeremy Gilbert ( Steven R. McQueen ) , her best friends Bonnie Bennett ( Kat Graham ) and Caroline Forbes ( Candice King ) , their mutual friends Tyler Lockwood ( Michael Trevino ) and Matt Donovan ( Zach Roerig ) , and their history teacher , vampire hunter Alaric Saltzman ( Matthew Davis ) .
The Vampire Diaries