Google Search can show who wrote the review directly in the search results snippet. Google has this "reviewed by" rich result element next to some search results that names the author of the review.

Google recommends ratings include written reviews and author names. Reviews must be visible and provide context. Proper implementation improves search visibility and user trust. Google updates review ...

Google updated its review snippet documentation to recommend that ratings should be accompanied by a review comment and author's name. This is a recommendation and not a requirement, but it seems like ...