“Grey's Anatomy” star Jessica Capshaw says it never occurred to her not to believe writer who faked cancer

"She was really good at that, because I believed her," she said in response to Peacock's three-part documentary about Finch, "Anatomy of Lies."

Longtime Grey's Anatomy regular Jessica Capshaw never suspected that one of the show's former writers, Elizabeth R. Finch, was lying about her cancer. But she was.

"It never occurred to me to not believe her," Capshaw said on Sunday's edition of her podcast, iHeartRadio's Call It What It Is, which she cohosts with Camilla Luddington, who continues to appear on ABC's long-running, hit medical drama. "The things that she lied about, you could never in a million years imagine questioning."

The women took on the topic of lies in an episode titled "Call it Liars." It was their response to Peacock's three-part documentary about Finch, which premiered Oct. 15. Anatomy of Lies delved into Finch's fabrications and how she'd gotten away with them for the better part of a decade.

After reports uncovered her lies, as she was under investigation at Disney, Finch resigned.

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"It's so hard to explain," said Capshaw, who left the show in 2018, but made an appearance as Dr. Arizona Robbins in 2020. "Of course I was surprised that she wasn't who she really said she was, and she was not reporting any experiences that were actually hers, but I wasn't surprised that someone could do that. And I sort of just felt like, Oh, like, well, she was really good at that, because I believed her."

Capshaw said she and Finch had "a really, really long conversation" outside her trailer when she left the cast, "because she was so sad that I was leaving and wanted to talk about it."

Now she questions whether Finch was sad at all.

Meanwhile, Luddington, who continues to portray Dr. Josephine "Jo" Wilson on Grey's, said she didn't want to talk about her time on the set with Finch, but she had to share one personal story that she's kept to herself until now.

"What I really hate, again, about this is it makes you go back and sort of question all the different things," Luddington said. "And this person. I remember going to Hawaii for the first time, and I was so excited that I could afford going to Hawaii. I was never able to afford something so tropical and glamorous. And I told everybody that I was going to Kauai, and I was really excited. And I was going with my boyfriend who's now my husband, obviously."

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Weirdly, Finch popped up on her vacation.

"I think it was about three days into that trip and [Finch] was sat at the bar in the hotel. The hotel where I was in Kauai, sat in the bar, three days into my trip. Yeah, she was with somebody else, and I just remember thinking it was the most random coincidence.

Related: Grey's Anatomy writer who faked cancer speaks out after docuseries about her lies

Luddington said she had told "so many" people where she was going.

"I'm sure I would have told her," she noted.

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Following the premiere of Anatomy of Lies, Finch issued a statement: "The truth is, there is no excuse, no justification — nothing will ever make my lies to anyone okay. Nothing erases the trauma I caused — the fear, the pain, the anger, the tears, the time. And nothing matters more to me than holding myself accountable in every way. I will continue to repair whatever damage I can and ensure I am not the worst things I've done. I recognize all of this will take time for people to believe. I will work and wait as long as it takes."