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So grab your tissues and join us on this trip down a vampire-filled memory lane.

This week, Phoebe Tonkin remembers the introduction of Hayley…

The Killer

Credit: Bob Mahoney/The CW

I knew I was going to do theVampire Diariesspin-off from the moment I signed up.

No one else knew that, so it was hard to keep that a secret.

I think everyone was like, “Who is this Australian girl?”

And I’m like, “I promise I’m going to be sticking around for a while!”

So I had a very sweet stand-in read his line and I had to pretend it was Joseph.

I definitely mainly worked with Joe and Michael.

It was fun to be part of that.

I didn’t even really know much about Hayley when I signed on.

I knew that she was a little mysterious, that she had a bit of a darker past.

I didn’t know that much about what she was going to do while in New Orleans.

That was all news to me as we got the scripts.

That serves that purpose."

It’s kind of crazy to think how long ago it was.

I definitely rememberThe Originalsbackdoor pilot.

I remember the fan reaction to Hayley wasn’t particularly positive.

I’m very, very grateful.

As told to Samantha Highfill

The Vampire Diariesairs Fridays at 8 p.m.

ET on The CW.