Credit: IMDB.com Photo: Shannon Guess

The Walking Dead's Glen Mazzara and The Vampire Diaries' Julie Plec have both responded to actress Shannon Richardson's arrest. Their collective response: WHO?!

Following the news of the actress' Friday arrest for allegedly mailing threatening ricin-laden letters to President Obama, New York City Mayor Michael Bloomberg, and gun control advocate Mark Glaze, the executive producers behind these shows, which she had very small parts on, are failing to recall her.

"Some actress from TWD sent ricin letters to the Prez? Never heard of her. Anyone know what role she played?" Glen asked on Twitter.

Answered Julie shortly afterward: "If she played an equivalent part to one she supposedly played on TVD, she was third background from the right. Or something." Earlier, she tweeted: "My mom called me today very concerned about my affiliation w ricin terrorists. She's not hip to the term click-bait. Nor was I until today."

On AMC's zombie drama, Shannon was just one walker in a sea of the undead in two episodes of the first season, and the situation is very similar for the sexy CW show.

Source: The Hollywood Reporter