diff --git a/apps/dashboard/src/RoomCardV2.test.ts b/apps/dashboard/src/RoomCardV2.test.ts
index 16cbb4c..89643ec 100644
--- a/apps/dashboard/src/RoomCardV2.test.ts
+++ b/apps/dashboard/src/RoomCardV2.test.ts
@@ -24,8 +24,13 @@ const formatters = {
   formatDate: (value: string | null | undefined) => value ?? '-',
   formatDuration: (value: number | null) => (value === null ? '-' : `${value}`),
   formatLiveElapsed: (value: number) => `${value}`,
-  senderRoleClass: (value: string | null | undefined) =>
-    (value ?? '').toLowerCase().includes('owner') ? 'role-owner' : 'role-human',
+  senderRoleClass: (value: string | null | undefined) => {
+    const role = (value ?? '').toLowerCase();
+    if (role.includes('owner')) return 'role-owner';
+    if (role.includes('reviewer')) return 'role-reviewer';
+    if (role.includes('arbiter')) return 'role-arbiter';
+    return 'role-human';
+  },
   statusLabel: (status: string) => status,
 };
 
@@ -110,6 +115,51 @@ describe('RoomCardV2', () => {
     expect(html).toContain('prod 배포 완료');
   });
 
+  it('localizes protocol role and verdict labels in Korean rooms', () => {
+    const html = renderToStaticMarkup(
+      createElement(RoomCardV2, {
+        activity: activity({
+          pairedTask: {
+            id: 'task-1',
+            title: 'Review pending',
+            status: 'in_review',
+            roundTripCount: 2,
+            updatedAt: '2026-04-28T02:03:00.000Z',
+            currentTurn: null,
+            outputs: [
+              {
+                id: 1,
+                turnNumber: 2,
+                role: 'reviewer',
+                verdict: 'continue',
+                createdAt: '2026-04-28T02:02:00.000Z',
+                outputText: '검증 완료. 다음 단계로 진행 가능합니다.',
+              },
+            ],
+          },
+        }),
+        activityLoading: false,
+        busy: false,
+        draft: '',
+        entry,
+        expanded: true,
+        inboxItems: [],
+        locale: 'ko',
+        onDraftChange: () => {},
+        onSendMessage: () => {},
+        onToggle: () => {},
+        pinned: true,
+        t,
+        ...formatters,
+      }),
+    );
+
+    expect(html).toContain('>리뷰어</span>');
+    expect(html).toContain('>계속</span>');
+    expect(html).not.toContain('>reviewer</span>');
+    expect(html).not.toContain('>continue</span>');
+  });
+
   it('renders live progress as markdown', () => {
     const html = renderToStaticMarkup(
       createElement(RoomCardV2, {
@@ -244,6 +294,7 @@ describe('RoomCardV2', () => {
     );
 
     expect(html).toContain('class="room-watcher-fold"');
+    expect(html).toContain('>리뷰어</strong>');
     expect(html).toContain(watcherTail);
   });
 });
diff --git a/apps/dashboard/src/RoomCardV2.tsx b/apps/dashboard/src/RoomCardV2.tsx
index 8caad08..6fe7da4 100644
--- a/apps/dashboard/src/RoomCardV2.tsx
+++ b/apps/dashboard/src/RoomCardV2.tsx
@@ -5,6 +5,7 @@ import type { DashboardOverview, DashboardRoomActivity } from './api';
 import type { Locale, Messages } from './i18n';
 import { ParsedBody } from './ParsedBody';
 import { RoomAttachmentGallery } from './RoomAttachmentGallery';
+import { displayRole, displayVerdict } from './roomDisplayLabels';
 import {
   buildRoomThreadEntries,
   isWatcherRoomMessage,
@@ -421,7 +422,9 @@ function RoomCurrentTurnSummary({
   return (
     <div className="room-current-turn">
       <span>
-        <strong className={senderRoleClass(turn.role)}>{turn.role}</strong>
+        <strong className={senderRoleClass(turn.role)}>
+          {displayRole(turn.role, locale)}
+        </strong>
         <em>{turn.intentKind}</em>
         {turn.attemptNo > 1 ? (
           <small>
@@ -504,7 +507,9 @@ function CollapsedLiveTurn({
       <header>
         <span className="live-dot" aria-hidden />
         <span className="live-label">LIVE</span>
-        <strong className={senderRoleClass(turn.role)}>{turn.role}</strong>
+        <strong className={senderRoleClass(turn.role)}>
+          {displayRole(turn.role, locale)}
+        </strong>
         <em>{turn.intentKind}</em>
         <span className="live-state pill pill-processing">{turn.state}</span>
         {turn.executorServiceId ? (
@@ -574,7 +579,7 @@ function CollapsedWatcherStrip({
       <span className="watcher-tag">워쳐 {watcherCount}</span>
       <span className="watcher-line">
         <strong className={senderRoleClass(lastWatcher.senderName)}>
-          {lastWatcher.senderName}
+          {displayRole(lastWatcher.senderName, locale)}
         </strong>
         <span>{lastWatcher.content.slice(0, 90)}</span>
       </span>
@@ -764,7 +769,7 @@ function RoomTimelineEntry({
     <li className={`room-timeline-item ${sectionClass}`}>
       <header className="room-timeline-header">
         <span className={`role-chip ${senderRoleClass(entry.senderName)}`}>
-          {entry.senderName}
+          {displayRole(entry.senderName, locale)}
         </span>
         <time>{formatDate(entry.timestamp, locale)}</time>
         {entry.turnNumber !== undefined ? (
@@ -774,7 +779,7 @@ function RoomTimelineEntry({
         ) : null}
         {verdict ? (
           <span className={`parsed-marker parsed-marker-${verdictTone}`}>
-            {verdict}
+            {displayVerdict(verdict, locale)}
           </span>
         ) : null}
       </header>
@@ -818,7 +823,7 @@ function RoomLiveTimelineEntry({
           <span className="paused-dot" aria-hidden />
         )}
         <span className={`role-chip ${senderRoleClass(turn.role)}`}>
-          {turn.role}
+          {displayRole(turn.role, locale)}
         </span>
         <time>
           {formatDate(turn.progressUpdatedAt ?? turn.updatedAt, locale)}
@@ -866,7 +871,7 @@ function RoomWatcherFold({
           <li className="room-watcher-item" key={message.id}>
             <header>
               <strong className={senderRoleClass(message.senderName)}>
-                {message.senderName}
+                {displayRole(message.senderName, locale)}
               </strong>
               <time>{formatDate(message.timestamp, locale)}</time>
             </header>
diff --git a/apps/dashboard/src/roomDisplayLabels.ts b/apps/dashboard/src/roomDisplayLabels.ts
new file mode 100644
index 0000000..a4d7e2c
--- /dev/null
+++ b/apps/dashboard/src/roomDisplayLabels.ts
@@ -0,0 +1,34 @@
+import type { Locale } from './i18n';
+
+const KO_ROLE_LABELS: Record<string, string> = {
+  arbiter: '중재자',
+  owner: '오너',
+  reviewer: '리뷰어',
+};
+
+const KO_VERDICT_LABELS: Record<string, string> = {
+  blocked: '차단',
+  continue: '계속',
+  done: '완료',
+  done_with_concerns: '우려 있음',
+  needs_context: '컨텍스트 필요',
+  proceed: '진행',
+  reset: '초기화',
+  revise: '수정 필요',
+  step_done: '단계 완료',
+  task_done: '작업 완료',
+};
+
+export function displayRole(
+  value: string | null | undefined,
+  locale: Locale,
+): string {
+  const raw = value ?? '';
+  if (locale !== 'ko') return raw;
+  return KO_ROLE_LABELS[raw.trim().toLowerCase()] ?? raw;
+}
+
+export function displayVerdict(value: string, locale: Locale): string {
+  if (locale !== 'ko') return value;
+  return KO_VERDICT_LABELS[value.trim().toLowerCase()] ?? value;
+}