Trevino joined her in posting about alligators -- except he was eating one on a stick!
Holt also shared her happiness from NOLA.
Joining the cast, the show's executive producer Julie Plec said she loves New Orleans too.
One costar absent from the wedding was Ian Somerhalder who had to send his wishes from afar.
He wrote this message yesterday with his Instagram.:
Candace and Joe- my brother, my sister. What a magical day this is for both of you. From the eye of the storm I am still with you in spirit! I am missing my home state of Louisiana and my city, the great city of New Orleans. Sending you so much love from my shoot in ATL- i'm working hard & I wish I could be there physically, but we have the rest of our lives to celebrate. I love you guys! So. Much.