diff --git a/README.md b/README.md
index 311965be..6d1cddf2 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,19 @@ To start the app locally in the foreground and watch for changes:
 
     script/dev_server
 
+### Users
+
+There are currently six mock users for development:
+
+- Sam (a CCPO)
+- Amanda
+- Brandon
+- Christina
+- Dominick
+- Erica
+
+To log in as one of them, navigate to `/login-dev?username=<lowercase name>`. For example `/login-dev?username=amanda`.
+
 ## Testing
 
 To run lint, static analysis, and unit tests:
diff --git a/atst/handlers/dev.py b/atst/handlers/dev.py
index 86c4e419..878aca11 100644
--- a/atst/handlers/dev.py
+++ b/atst/handlers/dev.py
@@ -6,7 +6,7 @@ _DEV_USERS = {
     "sam": {
         "id": "164497f6-c1ea-4f42-a5ef-101da278c012",
         "first_name": "Sam",
-        "last_name": "CCPO",
+        "last_name": "Seeceepio",
         "atat_role": "ccpo"
     },
 
diff --git a/templates/navigation/topbar.html.to b/templates/navigation/topbar.html.to
index 9c6ef28c..856075ec 100644
--- a/templates/navigation/topbar.html.to
+++ b/templates/navigation/topbar.html.to
@@ -11,7 +11,7 @@
       </a>
 
       <a href="/" class="topbar__link">
-        <span class="topbar__link-label">Sam Seeceepio</span>
+        <span class="topbar__link-label">{{ current_user["first_name"] + " " + current_user["last_name"] }}</span>
         {% module Icon('avatar', classes='topbar__link-icon') %}
       </a>
     </div>