Holly Marie Combs played Ella Montgomery on ‘Pretty Little Liars’ after portraying Piper Halliwell on ‘Charmed’ ...

On a Charmed reunion panel with Rose McGowan at Sunday's 90s Con in Hartford, Conn., Combs described the experience of moving ...

Charmed star Holly Marie Combs on seeing a "mirror experience" watching the younger cast growing up during "Pretty Little ...

However, "Shannen and [executive producer] Aaron [Spelling] said we’re not really the show without Holly," Combs continued.