Despite being diagnosed with cancer, Kelley Mack’s death came as a shock to her loved ones.

A representative for the actress, who played Addy on Season 9 of The Walking Dead , told PEOPLE that she was still auditioning for roles up until very recently and they were “totally surprised” by her death last week.

“We had no idea the turn it took and it was very unexpected,” the rep added.

TMZ reported that Mack, 33, took a break from auditioning in early July, with her rep telling the outlet, “no one expected” her to die.

Mack’s death was announced in a post on her Instagram account .

“It is with indelible sadness that we are announcing the passing of our dear Kelley. Such a bright, fervent light has transitioned to the beyond, where we all eventually must go,” read a me

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