diff --git a/apps/api/src/admin/participant_manager.py b/apps/api/src/admin/participant_manager.py
index b7d69e21..3495b8d6 100644
--- a/apps/api/src/admin/participant_manager.py
+++ b/apps/api/src/admin/participant_manager.py
@@ -9,13 +9,21 @@
 
 log = getLogger(__name__)
 
+NON_HACKER_ROLES = (
+    Role.MENTOR,
+    Role.VOLUNTEER,
+    Role.SPONSOR,
+    Role.JUDGE,
+    Role.WORKSHOP_LEAD,
+)
+
 
 class Participant(UserRecord):
     """Participants attending the event."""
 
     first_name: str
     last_name: str
-    status: Union[Status, Decision]
+    status: Union[Status, Decision] = Status.REVIEWED
 
 
 async def get_hackers() -> list[Participant]:
@@ -47,6 +55,16 @@ async def get_hackers() -> list[Participant]:
     return [Participant(**user, **user["application_data"]) for user in records]
 
 
+async def get_non_hackers() -> list[Participant]:
+    """Fetch all non-hackers participating in the event."""
+    records: list[dict[str, Any]] = await mongodb_handler.retrieve(
+        Collection.USERS,
+        {"role": {"$in": NON_HACKER_ROLES}},
+        ["_id", "status", "role", "first_name", "last_name"],
+    )
+    return [Participant(**user) for user in records]
+
+
 async def check_in_participant(uid: str, associate: User) -> None:
     """Check in participant at IrvineHacks"""
     record: Optional[dict[str, object]] = await mongodb_handler.retrieve_one(
@@ -76,20 +94,12 @@ async def check_in_participant(uid: str, associate: User) -> None:
 
 async def confirm_attendance_non_hacker(uid: str, director: User) -> None:
     """Update status for Role.Attending for non-hackers."""
-    allowed_roles = (
-        Role.MENTOR,
-        Role.ORGANIZER,
-        Role.VOLUNTEER,
-        Role.SPONSOR,
-        Role.JUDGE,
-        Role.WORKSHOP_LEAD,
-    )
 
     record: Optional[dict[str, object]] = await mongodb_handler.retrieve_one(
         Collection.USERS, {"_id": uid, "status": Status.WAIVER_SIGNED}
     )
 
-    if not record or record["role"] not in allowed_roles:
+    if not record or record["role"] not in NON_HACKER_ROLES:
         raise ValueError
 
     update_status = await mongodb_handler.raw_update_one(
diff --git a/apps/api/src/routers/admin.py b/apps/api/src/routers/admin.py
index b757c64f..0b754e85 100644
--- a/apps/api/src/routers/admin.py
+++ b/apps/api/src/routers/admin.py
@@ -248,8 +248,9 @@ async def waitlist_release(uid: str) -> None:
 @router.get("/participants", dependencies=[Depends(require_checkin_associate)])
 async def participants() -> list[Participant]:
     """Get list of participants."""
-    # TODO: non-hackers
-    return await participant_manager.get_hackers()
+    hackers = await participant_manager.get_hackers()
+    non_hackers = await participant_manager.get_non_hackers()
+    return hackers + non_hackers
 
 
 @router.post("/checkin/{uid}")