Actor Alyson Hannigan says she will miss her Buffy co-star Anthony Head “forever” in an emotional tribute posted on Instagram. Multiple outlets report that Hannigan shared the message following his death, describing the loss as profound. One reported line from her post states: “This cut is so deep I fear it can never heal.” The reports characterize the Instagram post as a personal statement of grief and remembrance rather than a detailed account of circumstances. While the coverage centers on Hannigan’s reaction, all sources agree the tribute is directed at Head, and that it uses strong language to convey lasting impact. The items presented do not add further context such as dates of death, cause, or specific shared projects beyond their association through Buffy. Overall, the reporting focuses on Hannigan’s public acknowledgement of her feelings and her description of the loss.