The stunt involved the actress rolling off a thick tree branch high above the ground and hanging on. But when Lilly asked for protective covering for her arms, the stunt coordinator refused.
"I felt it was him saying, 'I'm going to put you in your place for standing up to me'. I was in my 20s then. Now, I would probably back down."
Evangeline was 25 when the hit ABC series first went to air.
Lilly also spoke about how she's worked with inexperienced stuntwomen who have only been hired by virtue of dating the stunt coordinator.
"A stuntwoman whose breasts are four-times bigger than mine was hired once as my double. She said she'd never done stunts before. And I wondered: How did this happen?"
Stunt performers on the panel, held on the Fox lot in Los Angeles, spoke about other issues of inequality in the industry like 'wigging' and 'paint downs'.
'Wigging' involves putting a wig on a stuntman so he can double for an actress, thereby denying a job to a female stunt performer. 'Paint downs' involve applying dark makeup to white stuntpeople to allow them to double for black actors.
"It's going on every week," said veteran stuntwoman Sharon Shaffer. "It's the return of the minstrel-era blackface. The rightful owner of that job didn't get it, or didn't even get a phone call."