Jason Isaacs' 'Star Trek: Discovery' Costume Felt Like A 'Sausage Skin'

Jason Isaacs is sharing the details on his tight-fitting "Star Trek: Discovery" costume.

During the premiere of his new film "Mass," the English-born actor, 58, compared the costume for his role as Captain Gabriel Lorca in the series to living "inside a vacuumed sausage skin."

"It wasn’t so much that they were uncomfortable, it was just that I prefer my testicles down somewhere near my groin and not my throat," Isaacs said during an interview with Page Six Tuesday.

According to the "Harry Potter" actor, whenever he lifted his arms up, there "was quite a display that they hadn’t planned for." They were able to remedy it, but Isaacs opted to not go into detail regarding the methods they used.

"Far be it from me to give away any secrets," he joked. "I’ve signed an NDA about any groin discussions."

Isaacs noted that production improved the costume after Patrick Stewart complained about his clingy Captain Picard jumpsuit. But while the new design addressed some issues, it did raise a new one.

"How are we going to have children?" he jokingly asked.

Stewart previously discussed the challenges he faced with his "Star Trek: The Next Generation" costume over a decade ago. According to him, it was painful to wear.

"I came to loathe the costume. We actually got rid of it after the second season thanks to my chiropractor, who said, 'If they don't take you out of that costume we are going to slap a lawsuit on Paramount for the lasting damage done to your spine," he told Newsweek. "They were made from Lycra and one size too small. The producers wanted to have a smooth, unwrinkled look. It put a terrible amount of strain on the shoulders, neck and back."

Isaacs also spoke about his new film "Mass," which follows two couples who meet for a painful and raw conversation in the aftermath of a school shooting.

The actor revealed that he found himself heaving with sobs when he read the script for the first time in a Starbucks. He recalled thinking to himself at the time, "If I don’t do this, what's the point of being an actor?"

"It's a story about trying to make human connections across division," Isaacs explained, "and how blame and hate destroy the people who are blaming and hating. And I don’t think there's a more important story to tell in today's world and it's also utterly gripping."

Isaacs also shared that the film premiere fell on the 23rd anniversary of his sobriety. He told Page Six he considers himself lucky that he wanted to live and that there were people around him who "showed me that it's possible."