Talking to MTV News, the actress reflected on Amanda's experience during the series's first season and her relationship with Daryl Dixon, played by Norman Reedus.
"I think Andrea is in a severe depression. I think she's very apathetic. Her reason to live has been taken from her. Amy was her heart," she explained.
"Her deciding in the season finale that she was going to live wasn't necessarily for her. It's because she didn't want another death on her hands. Dale gave her no choice. She's looking at this man, and he's saying, 'I'm going to die if you don't get it together. I'm going to die if you don't come with me'. She kind of hates him for it, because she wants to check out."
Holden added that she hopes to see Amanda develop her sniper skills next season as they are written in the Walking Dead original comic book series.
"[At first], Andrea doesn't know that she has this skill set. I think that will organically unfold where she'll actually go to the shooting range or something will be written where she's like, 'Oh, I'm a natural!'" she said.
"I am so excited, because I have a little bit of a tomboy in me, but I'm very excited to start going out with the guys and start shooting zombies."
The Walking Dead airs on AMC in the US and on FX in the UK.