“Arrow” star Stephen Amell has weighed in on the suspension of executive producer Andrew Kreisberg amid allegations of sexual harassment.

In a a video posted to Facebook, the actor voiced his willingness to help with any investigation into the claims, and his solidarity with his castmates. “If you’re not an active part of the solution, then you are a part of the problem,” he said.

Variety reported on Friday that Kreisberg had been suspended by Warner Bros. TV following an investigation into alleged misconduct. The story included allegations from 19 people, who reported incidents of inappropriate touching, asking for massages, kissing women without permission, and a constant stream of sexualized comments about women’s appearances. Kreisberg has denied the allegations.

Following the news, several stars who’ve worked on shows under Kreisberg — including Melissa Benoist and Chyler Leigh (“Supergirl”), Emily Bett Rickards (“Arrow”), and Caity Lotz (“Legends of Tomorrow”) — took to social media to weigh in, though none mentioned Kreisberg by name.

“I have no interest in speaking about an ongoing investigation … other than to say WB is conducting an investigation into what is being alleged against one of the producers on our show, and if they need my help in any way, shape or form, they will get it,” Amell said in the video. “I thought that it was appropriate before I spoke to you or before I spoke publicly, to speak with our cast and our crew, which I got the chance to do this morning. I certainly can’t pontificate in an eloquent way or in such a succinct manner like Emily did, like Melissa did, like Caity Lotz did. I stand behind and fully support everything that they said. Our biggest asset on ‘Arrow’ is our crew, and further more, their biggest strength and our biggest strength is working on it as a team. I think that we can do this because we promote and we champion a safe and progressive work environment.”

“I told them this morning, and I tell you now — and I meant it — that if anyone ever feels anything less than 100 percent safe, or anyone feels as through they aren’t allowed to express themselves and be the person that they are, that they should come to whomever they are supposed to go to and that I’ll stand right besides them, right behind them, I’ll speak on their behalf if need be,” he continued. “I also think that in situations like this if you’re not an active part of the solution, then you are a part of the problem. Period. That’s it. We do our best to have the best possible work environment. We will continue to do so. Again, I echo the statements made by my friend and co-worker Emily Bett Rickards, Caity Lotz, Melissa Benoist and the chorus of others that have come forward and called for a safe, progressive, equal working environment.”

Watch the full video below: