diff --git a/src/state/cache/profile-shadow.ts b/src/state/cache/profile-shadow.ts
index a1212d8a29..31bf55d132 100644
--- a/src/state/cache/profile-shadow.ts
+++ b/src/state/cache/profile-shadow.ts
@@ -21,6 +21,7 @@ import {findAllProfilesInQueryData as findAllProfilesInProfileFollowersQueryData
 import {findAllProfilesInQueryData as findAllProfilesInProfileFollowsQueryData} from '#/state/queries/profile-follows'
 import {findAllProfilesInQueryData as findAllProfilesInSuggestedFollowsQueryData} from '#/state/queries/suggested-follows'
 import {findAllProfilesInQueryData as findAllProfilesInSuggestedUsersQueryData} from '#/state/queries/trending/useGetSuggestedUsersQuery'
+import {findAllProfilesInQueryData as findAllProfilesInPostThreadV2QueryData} from '#/state/queries/usePostThread/queryCache'
 import type * as bsky from '#/types/bsky'
 import {castAsShadow, type Shadow} from './types'
 
@@ -167,6 +168,7 @@ function* findProfilesInCache(
   yield* findAllProfilesInListConvosQueryData(queryClient, did)
   yield* findAllProfilesInFeedsQueryData(queryClient, did)
   yield* findAllProfilesInPostThreadQueryData(queryClient, did)
+  yield* findAllProfilesInPostThreadV2QueryData(queryClient, did)
   yield* findAllProfilesInKnownFollowersQueryData(queryClient, did)
   yield* findAllProfilesInExploreFeedPreviewsQueryData(queryClient, did)
 }
diff --git a/src/state/queries/usePostThread/queryCache.ts b/src/state/queries/usePostThread/queryCache.ts
index 8af7ec761f..515fb349d3 100644
--- a/src/state/queries/usePostThread/queryCache.ts
+++ b/src/state/queries/usePostThread/queryCache.ts
@@ -1,5 +1,6 @@
 import {
   type $Typed,
+  type AppBskyActorDefs,
   type AppBskyFeedDefs,
   AppBskyUnspeccedDefs,
   type AppBskyUnspeccedGetPostThreadOtherV2,
@@ -272,3 +273,32 @@ export function* findAllPostsInQueryData(
     }
   }
 }
+
+export function* findAllProfilesInQueryData(
+  queryClient: QueryClient,
+  did: string,
+): Generator<AppBskyActorDefs.ProfileViewBasic, void> {
+  const queryDatas =
+    queryClient.getQueriesData<AppBskyUnspeccedGetPostThreadV2.OutputSchema>({
+      queryKey: [postThreadQueryKeyRoot],
+    })
+
+  for (const [_queryKey, queryData] of queryDatas) {
+    if (!queryData) continue
+
+    const {thread} = queryData
+
+    for (const item of thread) {
+      if (AppBskyUnspeccedDefs.isThreadItemPost(item.value)) {
+        if (item.value.post.author.did === did) {
+          yield item.value.post.author
+        }
+
+        const qp = getEmbeddedPost(item.value.post.embed)
+        if (qp && qp.author.did === did) {
+          yield qp.author
+        }
+      }
+    }
+  }
+}