diff --git a/apps/api/plane/app/serializers/issue.py b/apps/api/plane/app/serializers/issue.py
index 1eda376015b..8a643ce4dc3 100644
--- a/apps/api/plane/app/serializers/issue.py
+++ b/apps/api/plane/app/serializers/issue.py
@@ -667,16 +667,33 @@ class Meta:
 
 
 class IssueReactionLiteSerializer(DynamicBaseSerializer):
+    display_name = serializers.CharField(source="actor.display_name", read_only=True)
+
     class Meta:
         model = IssueReaction
-        fields = ["id", "actor", "issue", "reaction"]
+        fields = ["id", "actor", "issue", "reaction", "display_name"]
 
 
 class CommentReactionSerializer(BaseSerializer):
+    display_name = serializers.CharField(source="actor.display_name", read_only=True)
+
     class Meta:
         model = CommentReaction
-        fields = "__all__"
-        read_only_fields = ["workspace", "project", "comment", "actor", "deleted_at"]
+        fields = [
+            "id",
+            "actor",
+            "comment",
+            "reaction",
+            "display_name",
+            "deleted_at",
+            "workspace",
+            "project",
+            "created_at",
+            "updated_at",
+            "created_by",
+            "updated_by",
+        ]
+        read_only_fields = ["workspace", "project", "comment", "actor", "deleted_at", "created_by", "updated_by"]
 
 
 class IssueVoteSerializer(BaseSerializer):
diff --git a/apps/web/ce/components/comments/comment-block.tsx b/apps/web/ce/components/comments/comment-block.tsx
index 42c9dbfd1b4..6ed7fc09461 100644
--- a/apps/web/ce/components/comments/comment-block.tsx
+++ b/apps/web/ce/components/comments/comment-block.tsx
@@ -2,9 +2,8 @@ import { FC, ReactNode, useRef } from "react";
 import { observer } from "mobx-react";
 // plane imports
 import { useTranslation } from "@plane/i18n";
-import { Tooltip } from "@plane/propel/tooltip";
-import { TIssueComment } from "@plane/types";
-import { Avatar } from "@plane/ui";
+import { EIssueCommentAccessSpecifier, TIssueComment } from "@plane/types";
+import { Avatar, Tooltip } from "@plane/ui";
 import { calculateTimeAgo, cn, getFileURL, renderFormattedDate, renderFormattedTime } from "@plane/utils";
 // hooks
 import { useMember } from "@/hooks/store/use-member";
@@ -27,7 +26,13 @@ export const CommentBlock: FC<TCommentBlock> = observer((props) => {
   // translation
   const { t } = useTranslation();
 
-  if (!comment || !userDetails) return null;
+  const displayName = comment?.actor_detail?.is_bot
+    ? comment?.actor_detail?.first_name + ` ${t("bot")}`
+    : (userDetails?.display_name ?? comment?.actor_detail?.display_name);
+
+  const avatarUrl = userDetails?.avatar_url ?? comment?.actor_detail?.avatar_url;
+
+  if (!comment) return null;
 
   return (
     <div
@@ -43,20 +48,15 @@ export const CommentBlock: FC<TCommentBlock> = observer((props) => {
           "flex-shrink-0 relative w-7 h-6 rounded-full transition-border duration-1000 flex justify-center items-center z-[3] uppercase font-medium"
         )}
       >
-        <Avatar
-          size="base"
-          name={userDetails?.display_name}
-          src={getFileURL(userDetails?.avatar_url)}
-          className="flex-shrink-0"
-        />
+        <Avatar size="base" name={displayName} src={getFileURL(avatarUrl)} className="flex-shrink-0" />
       </div>
       <div className="flex flex-col gap-3 truncate flex-grow">
         <div className="flex w-full gap-2">
           <div className="flex-1 flex flex-wrap items-center gap-1">
-            <div className="text-xs font-medium">
-              {comment?.actor_detail?.is_bot
-                ? comment?.actor_detail?.first_name + ` ${t("bot")}`
-                : comment?.actor_detail?.display_name || userDetails.display_name}
+            <div className="flex items-center gap-1">
+              <span className="text-xs font-medium">
+                {`${displayName}${comment.access === EIssueCommentAccessSpecifier.EXTERNAL ? " (External User)" : ""}`}
+              </span>
             </div>
             <div className="text-xs text-custom-text-300">
               commented{" "}
diff --git a/apps/web/core/components/issues/issue-detail/reactions/issue-comment.tsx b/apps/web/core/components/issues/issue-detail/reactions/issue-comment.tsx
index 4305ef6edec..911b4fe8a13 100644
--- a/apps/web/core/components/issues/issue-detail/reactions/issue-comment.tsx
+++ b/apps/web/core/components/issues/issue-detail/reactions/issue-comment.tsx
@@ -85,7 +85,9 @@ export const IssueCommentReaction: FC<TIssueCommentReaction> = observer((props)
     const reactionUsers = (reactionIds?.[reaction] || [])
       .map((reactionId) => {
         const reactionDetails = getCommentReactionById(reactionId);
-        return reactionDetails ? getUserDetails(reactionDetails.actor)?.display_name : null;
+        return reactionDetails
+          ? getUserDetails(reactionDetails?.actor)?.display_name || reactionDetails?.display_name
+          : null;
       })
       .filter((displayName): displayName is string => !!displayName);
     const formattedUsers = formatTextList(reactionUsers);
diff --git a/apps/web/core/components/issues/issue-detail/reactions/issue.tsx b/apps/web/core/components/issues/issue-detail/reactions/issue.tsx
index 243b26aef04..ff5ae309962 100644
--- a/apps/web/core/components/issues/issue-detail/reactions/issue.tsx
+++ b/apps/web/core/components/issues/issue-detail/reactions/issue.tsx
@@ -85,7 +85,9 @@ export const IssueReaction: FC<TIssueReaction> = observer((props) => {
     const reactionUsers = (reactionIds?.[reaction] || [])
       .map((reactionId) => {
         const reactionDetails = getReactionById(reactionId);
-        return reactionDetails ? getUserDetails(reactionDetails.actor)?.display_name : null;
+        return reactionDetails
+          ? getUserDetails(reactionDetails?.actor)?.display_name || reactionDetails?.display_name
+          : null;
       })
       .filter((displayName): displayName is string => !!displayName);
 
diff --git a/packages/types/src/issues/activity/issue_comment_reaction.ts b/packages/types/src/issues/activity/issue_comment_reaction.ts
index 892a3e9065c..590b18ca5eb 100644
--- a/packages/types/src/issues/activity/issue_comment_reaction.ts
+++ b/packages/types/src/issues/activity/issue_comment_reaction.ts
@@ -9,6 +9,7 @@ export type TIssueCommentReaction = {
   updated_at: Date;
   created_by: string;
   updated_by: string;
+  display_name: string;
 };
 
 export type TIssueCommentReactionMap = {
diff --git a/packages/types/src/issues/issue_reaction.ts b/packages/types/src/issues/issue_reaction.ts
index 49c971f4afe..bb0bf7a6a27 100644
--- a/packages/types/src/issues/issue_reaction.ts
+++ b/packages/types/src/issues/issue_reaction.ts
@@ -5,6 +5,7 @@ export type TIssueReaction = {
   id: string;
   issue: string;
   reaction: string;
+  display_name: string;
 };
 
 export interface IIssuePublicReaction {