Actress Tatiana Maslany is revealing her favourite “Orphan Black” character and more details, including which iconic Canadian band was her first-ever concert.

While the fan-favourite sci-fi series came to an end last year, the 33-year-old star tells “Watch What Happens Live” host Andy Cohen which of her clones was the best.

“I think my favourite was Helena. She was a serial killer from the Ukraine who ate everything in sight,” Maslany says.

RELATED: Sandra Oh Gushes Over Tatiana Maslany: ‘I’m Really Excited To Meet Her’

The Regina, Sask. native also shared her first concert experience during a segment of “Outside The Actor’s Studio” with Cohen and her fellow guest, “Will & Grace” star Sean Hayes.

“Tatiana, what was your first concert?” Cohen asks as Maslany replies with a smile: “A Canadian band called Our Lady Peace.”

“It was grunge,” she continues. “I was 12.”

But it’s Hayes’ first concert that gets a “wow” from the “Orphan Black” star.

“It was Tina Turner,” he says.

“Will & Grace” returns to Global on Thursday, Nov. 29 at 9 p.m. ET/PT.