diff --git a/web/components/community-actions-menu.react.js b/web/components/community-actions-menu.react.js
--- a/web/components/community-actions-menu.react.js
+++ b/web/components/community-actions-menu.react.js
@@ -16,6 +16,7 @@
 import ManageInviteLinksModal from '../invite-links/manage-invite-links-modal.react.js';
 import ViewInviteLinkModal from '../invite-links/view-invite-link-modal.react.js';
 import { useSelector } from '../redux/redux-utils.js';
+import CommunityRolesModal from '../roles/community-roles-modal.react.js';
 import { AddLink } from '../vectors.react.js';
 
 type Props = {
@@ -52,7 +53,10 @@
     pushModal(<ManageInviteLinksModal communityID={communityID} />);
   }, [communityID, pushModal]);
 
-  const openCommunityRolesModal = React.useCallback(() => {}, []);
+  const openCommunityRolesModal = React.useCallback(
+    () => pushModal(<CommunityRolesModal threadInfo={community} />),
+    [community, pushModal],
+  );
 
   const items = React.useMemo(() => {
     const itemSpecs = [];
diff --git a/web/roles/community-roles-modal.css b/web/roles/community-roles-modal.css
new file mode 100644
--- /dev/null
+++ b/web/roles/community-roles-modal.css
@@ -0,0 +1,52 @@
+.modalDescription {
+  color: var(--modal-fg);
+  padding: 16px 32px 0 32px;
+  font-size: var(--m-font-16);
+}
+
+.rolePanelTitleContainer {
+  display: flex;
+  flex-direction: row;
+  justify-content: space-between;
+  margin: 32px 32px 16px 32px;
+}
+
+.rolePanelTitle {
+  color: var(--community-roles-text-color);
+  font-size: var(--l-font-18);
+}
+
+.rolePanelTitle:last-of-type {
+  margin-right: 32px;
+}
+
+.separator {
+  border: 0;
+  margin: 0 32px 8px 32px;
+  width: 85%;
+  align-self: center;
+  height: 2px;
+  border: none;
+  border-top: var(--modal-separator) solid 1px;
+}
+
+.rolePanelList {
+  display: flex;
+  flex-direction: column;
+  overflow-y: auto;
+  max-height: 400px;
+  margin: 0 32px 16px 24px;
+}
+
+.createRoleButtonContainer {
+  width: 100%;
+  display: flex;
+  flex-direction: column;
+  align-self: center;
+  align-items: stretch;
+  margin-bottom: 16px;
+}
+
+.createRoleButton {
+  margin: 0 32px 0 32px;
+}
diff --git a/web/roles/community-roles-modal.react.js b/web/roles/community-roles-modal.react.js
new file mode 100644
--- /dev/null
+++ b/web/roles/community-roles-modal.react.js
@@ -0,0 +1,91 @@
+// @flow
+
+import * as React from 'react';
+
+import { useModalContext } from 'lib/components/modal-provider.react.js';
+import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
+import { getRoleMemberCountsForCommunity } from 'lib/shared/thread-utils.js';
+import type { ThreadInfo } from 'lib/types/thread-types.js';
+
+import css from './community-roles-modal.css';
+import RolePanelEntry from './role-panel-entry.react.js';
+import Button, { buttonThemes } from '../components/button.react.js';
+import Modal from '../modals/modal.react.js';
+import { useSelector } from '../redux/redux-utils.js';
+
+type CommunityRolesModalProps = {
+  +threadInfo: ThreadInfo,
+};
+
+function CommunityRolesModal(props: CommunityRolesModalProps): React.Node {
+  const { popModal } = useModalContext();
+  const { threadInfo } = props;
+
+  const [updatedThreadInfo, setUpdatedThreadInfo] =
+    React.useState<ThreadInfo>(threadInfo);
+
+  const threadID = threadInfo.id;
+  const reduxThreadInfo: ?ThreadInfo = useSelector(
+    state => threadInfoSelector(state)[threadID],
+  );
+
+  React.useEffect(() => {
+    if (reduxThreadInfo) {
+      setUpdatedThreadInfo(reduxThreadInfo);
+    }
+  }, [reduxThreadInfo]);
+
+  const roleNamesToMembers = React.useMemo(
+    () => getRoleMemberCountsForCommunity(updatedThreadInfo),
+    [updatedThreadInfo],
+  );
+
+  const rolePanelList = React.useMemo(() => {
+    const rolePanelEntries = [];
+
+    Object.keys(roleNamesToMembers).forEach(roleName => {
+      rolePanelEntries.push(
+        <RolePanelEntry
+          key={roleName}
+          roleName={roleName}
+          memberCount={roleNamesToMembers[roleName]}
+        />,
+      );
+    });
+
+    return rolePanelEntries;
+  }, [roleNamesToMembers]);
+
+  const onClickCreateRole = React.useCallback(() => {}, []);
+
+  return (
+    <Modal name="Roles" onClose={popModal} size="large">
+      <div className={css.modalDescription}>
+        Roles help you group community members together and assign them certain
+        permissions. When people join the community, they are automatically
+        assigned the Members role.
+      </div>
+      <div className={css.modalDescription}>
+        Communities must always have the Admins and Members role.
+      </div>
+      <div className={css.rolePanelTitleContainer}>
+        <div className={css.rolePanelTitle}>Roles</div>
+        <div className={css.rolePanelTitle}>Members</div>
+      </div>
+      <hr className={css.separator} />
+      <div className={css.rolePanelList}>{rolePanelList}</div>
+      <div className={css.createRoleButtonContainer}>
+        <Button
+          variant="filled"
+          className={css.createRoleButton}
+          buttonColor={buttonThemes.standard}
+          onClick={onClickCreateRole}
+        >
+          Create Role
+        </Button>
+      </div>
+    </Modal>
+  );
+}
+
+export default CommunityRolesModal;
diff --git a/web/roles/role-panel-entry.css b/web/roles/role-panel-entry.css
new file mode 100644
--- /dev/null
+++ b/web/roles/role-panel-entry.css
@@ -0,0 +1,24 @@
+.rolePanelEntry {
+  display: flex;
+  flex-direction: row;
+  justify-content: space-between;
+  align-items: center;
+  padding: 12px;
+  color: var(--community-roles-text-color);
+  font-weight: 500;
+}
+
+.rolePanelNameEntry {
+  font-size: var(--s-font-14);
+}
+
+.rolePanelCountEntryContainer {
+  margin-right: 40px;
+  display: flex;
+  align-items: flex-end;
+}
+
+.rolePanelCountEntry {
+  font-size: var(--s-font-14);
+  margin-right: 2px;
+}
diff --git a/web/roles/role-panel-entry.react.js b/web/roles/role-panel-entry.react.js
new file mode 100644
--- /dev/null
+++ b/web/roles/role-panel-entry.react.js
@@ -0,0 +1,26 @@
+// @flow
+
+import * as React from 'react';
+
+import css from './role-panel-entry.css';
+import CommIcon from '../CommIcon.react.js';
+
+type RolePanelEntryProps = {
+  +roleName: string,
+  +memberCount: number,
+};
+
+function RolePanelEntry(props: RolePanelEntryProps): React.Node {
+  const { roleName, memberCount } = props;
+  return (
+    <div className={css.rolePanelEntry}>
+      <div className={css.rolePanelNameEntry}>{roleName}</div>
+      <div className={css.rolePanelCountEntryContainer}>
+        <div className={css.rolePanelCountEntry}>{memberCount}</div>
+        <CommIcon icon="user-filled" size={18} />
+      </div>
+    </div>
+  );
+}
+
+export default RolePanelEntry;
diff --git a/web/theme.css b/web/theme.css
--- a/web/theme.css
+++ b/web/theme.css
@@ -239,4 +239,6 @@
   --change-member-role-modal-disabled-background: var(--shades-black-80);
   --unsaved-changes-modal-text-color: var(--shades-white-60);
   --modal-secondary-label: var(--shades-black-60);
+  --community-roles-text-color: var(--shades-white-100);
+  --modal-separator: var(--shades-black-80);
 }