Alyson Hannigan is among the Buffy The Vampire Slayer stars to not have spoken up on the Joss Whedon controversy yet.

Hannigan, also known for her role on CBS sitcom How I Met Your Mother, played Willow on the show created by Whedon. Former Buffy alumna Charisma Carpenter has recently alleged that Whedon was responsible for abusive on-set behavior, with some of her co-stars — including protagonist Sarah Michelle Gellar — coming forward to stand in solidarity with Carpenter.

‘Buffy’ Fans Urge Alyson Hannigan To Speak Up On Joss Whedon Abuse Allegations

Hannigan’s silence isn't sitting well with some fans, who have urged the actress to release a statement.

David Boreanaz, who played vampire Angel on the show and its spinoff, is the latest star who has voiced his support to Carpenter. He responded to Carpenter’s original post, saying, "I am here for you to listen and support you. Proud of your strength.”

Buffy fans are pointing out that Hannigan’s silence might be linked to her and her husband, actor Alexis Denisof, being friends with Whedon.

“for anyone waiting/asking for Alyson Hannigan to speak out against JW, she won't. She's married to one of his best friends so unless she's willing to ruin some part of her life, be it her marriage or her husband's friendship, she isn't going to say anything,” one fan wrote on Twitter.

“I used to be a buffy stan in 2016/17, and i used to stan alyson hannigan specifically. and when allegations about joss whedont started resurfacing, i started furthering myself away from btvs. then i realized that alyson’s basically besties with joss, still. so unstanned,” one Twitter user commented.

“Alyson Hannigan not speaking out about the Joss Whedon situation doesn't really surprise me, sadly. She loves him,” was another comment.

Related: Here's How Buffy The Vampire Slayer Got Her Name

Hannigan Doesn’t Owe Anyone A Statement, Say Fans

Some fans of the series, however, have taken to socials to support Hannigan and ask others to be respectful of her decision.

“You guys bullying #alysonhannigan to speak out ever stop to think that maybe shes not ready to speak. She will speak when shes ready. No choice,” one fan wrote.

“Can we stop calling out Alyson Hannigan for not speaking out about Joss Whedon with everyone else? She was another young, vulnerable woman on set and may have stories of her own that she does not owe us,” another commented.

Next: Here's What Alyson Hannigan's Relationship Is Like With Alexis Denisof