After four actresses came forward with allegations of sexual assault against Soulpepper Theatre Company founder Albert Schultz, over 300 people are showing their support.

Canadian actresses Sarah Polley and Mia Kirshner join those 300 who have signed a letter calling for action.

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The letter, obtained by The Toronto Star, asks the theatre company to “acknowledge the harm” suffered by the actresses who came forward.

The four actresses, Diana Bentley, Kristin Booth, Patricia Fagan and Hannah Miller, filed a lawsuit claiming Schultz groped them, exposed himself, pressed against them, or otherwise behaved inappropriately.

Schultz has since resigned from his position of founding artistic director.

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Neither Schultz nor Soulpepper have filed a statement of defense.

Both Polley and Kirshner have been very vocal in their fight against sexual harassment in Hollywood, including sharing their own personal experiences. Both claim to have had incidents involving defamed movie mogul Harvey Weinstein.

Tara Spencer-Nairn (“Corner Gas”), Kristin Kreuk (“Smallville”) and Amanda Brugel (“The Handmaid’s Tale”) also signed the letter.