diff --git a/controllers/grid/users/stageParticipant/StageParticipantGridHandler.inc.php b/controllers/grid/users/stageParticipant/StageParticipantGridHandler.inc.php
index 8645e5e70a9..e6a8f722967 100644
--- a/controllers/grid/users/stageParticipant/StageParticipantGridHandler.inc.php
+++ b/controllers/grid/users/stageParticipant/StageParticipantGridHandler.inc.php
@@ -39,7 +39,7 @@ function __construct() {
 		// Managers and Editors additionally get administrative access
 		$this->addRoleAssignment(
 			array(ROLE_ID_MANAGER, ROLE_ID_SUB_EDITOR),
-			array_merge($peOps, array('addParticipant', 'deleteParticipant', 'saveParticipant', 'fetchUserList'))
+			array_merge($peOps, array('addParticipant', 'saveParticipant', 'fetchUserList', 'removeParticipant', 'removeStageAssignment'))
 		);
 		$this->setTitle('editor.submission.stageParticipants');
 	}
@@ -356,12 +356,34 @@ function saveParticipant($args, $request) {
 	}
 
 	/**
-	 * Delete the participant from the user groups
-	 * @param $args
-	 * @param $request
-	 * @return JSONMessage JSON object
+	 * Show a confirmation form to remove a stage participant, with optional email notification.
+	 * @param $args array
+	 * @param $request PKPRequest
+	 * @return JSONMessage
+	 */
+	function removeParticipant($args, $request) {
+		$submission = $this->getSubmission();
+		$assignmentId = (int) $request->getUserVar('assignmentId');
+
+		$stageAssignmentDao = DAORegistry::getDAO('StageAssignmentDAO'); /* @var $stageAssignmentDao StageAssignmentDAO */
+		$stageAssignment = $stageAssignmentDao->getById($assignmentId);
+		if (!$stageAssignment || $stageAssignment->getSubmissionId() != $submission->getId()) {
+			return new JSONMessage(false);
+		}
+
+		import('lib.pkp.controllers.grid.users.stageParticipant.form.RemoveParticipantForm');
+		$form = new RemoveParticipantForm($submission, $stageAssignment, $this->getStageId());
+		$form->initData();
+		return new JSONMessage(true, $form->fetch($request));
+	}
+
+	/**
+	 * Handle removal form submission: optionally email the user and then remove the assignment.
+	 * @param $args array
+	 * @param $request PKPRequest
+	 * @return JSONMessage
 	 */
-	function deleteParticipant($args, $request) {
+	function removeStageAssignment($args, $request) {
 		$submission = $this->getSubmission();
 		$stageId = $this->getStageId();
 		$assignmentId = (int) $request->getUserVar('assignmentId');
@@ -372,40 +394,19 @@ function deleteParticipant($args, $request) {
 			return new JSONMessage(false);
 		}
 
-		// Delete the assignment
-		$stageAssignmentDao->deleteObject($stageAssignment);
+		import('lib.pkp.controllers.grid.users.stageParticipant.form.RemoveParticipantForm');
+		$form = new RemoveParticipantForm($submission, $stageAssignment, $stageId);
+		$form->readInputData();
+		if (!$form->validate()) {
+			return new JSONMessage(true, $form->fetch($request));
+		}
 
-		// FIXME: perhaps we can just insert the notification on page load
-		// instead of having it there all the time?
-		$notificationMgr = new NotificationManager();
-		import('classes.workflow.EditorDecisionActionsManager');
-		$notificationMgr->updateNotification(
-			$request,
-			(new EditorDecisionActionsManager())->getStageNotifications(),
-			null,
-			ASSOC_TYPE_SUBMISSION,
-			$submission->getId()
-		);
+		$form->execute();
 
-		if ($stageId == WORKFLOW_STAGE_ID_EDITING ||
-			$stageId == WORKFLOW_STAGE_ID_PRODUCTION) {
+		$stageAssignmentDao->deleteObject($stageAssignment);
 
-			// Update submission notifications
-			$notificationMgr->updateNotification(
-				$request,
-				array(
-					NOTIFICATION_TYPE_ASSIGN_COPYEDITOR,
-					NOTIFICATION_TYPE_AWAITING_COPYEDITS,
-					NOTIFICATION_TYPE_ASSIGN_PRODUCTIONUSER,
-					NOTIFICATION_TYPE_AWAITING_REPRESENTATIONS,
-				),
-				null,
-				ASSOC_TYPE_SUBMISSION,
-				$submission->getId()
-			);
-		}
+		$notificationMgr = new NotificationManager();
 
-		// Log removal.
 		$userDao = DAORegistry::getDAO('UserDAO'); /* @var $userDao UserDAO */
 		$assignedUser = $userDao->getById($stageAssignment->getUserId());
 		$userGroupDao = DAORegistry::getDAO('UserGroupDAO'); /* @var $userGroupDao UserGroupDAO */
@@ -413,7 +414,9 @@ function deleteParticipant($args, $request) {
 		import('lib.pkp.classes.log.SubmissionLog');
 		SubmissionLog::logEvent($request, $submission, SUBMISSION_LOG_REMOVE_PARTICIPANT, 'submission.event.participantRemoved', array('name' => $assignedUser->getFullName(), 'username' => $assignedUser->getUsername(), 'userGroupName' => $userGroup->getLocalizedName()));
 
-		// Redraw the category
+		$currentUser = $request->getUser();
+		$notificationMgr->createTrivialNotification($currentUser->getId(), NOTIFICATION_TYPE_SUCCESS);
+
 		return DAO::getDataChangedEvent($stageAssignment->getUserGroupId());
 	}
 
@@ -547,6 +550,4 @@ function fetchTemplateBody($args, $request) {
 	public function getJSHandler() {
 		return '$.pkp.controllers.grid.users.stageParticipant.StageParticipantGridHandler';
 	}
-}
-
-
+}
\ No newline at end of file
diff --git a/controllers/grid/users/stageParticipant/StageParticipantGridRow.inc.php b/controllers/grid/users/stageParticipant/StageParticipantGridRow.inc.php
index 0bff7dfb3ac..1f8a76e3bd6 100644
--- a/controllers/grid/users/stageParticipant/StageParticipantGridRow.inc.php
+++ b/controllers/grid/users/stageParticipant/StageParticipantGridRow.inc.php
@@ -56,17 +56,14 @@ function initialize($request, $template = null) {
 			if ($this->_canAdminister) {
 				$this->addAction(new LinkAction(
 					'delete',
-					new RemoteActionConfirmationModal(
-							$request->getSession(),
-							__('editor.submission.removeStageParticipant.description'),
-							__('editor.submission.removeStageParticipant'),
-							$router->url($request, null, null, 'deleteParticipant', null, $this->getRequestArgs()),
-							'modal_delete'
-							),
-						__('grid.action.remove'),
-						'delete'
-					)
-				);
+					new AjaxModal(
+						$router->url($request, null, null, 'removeParticipant', null, $this->getRequestArgs()),
+						__('editor.submission.removeStageParticipant'),
+						'modal_delete'
+					),
+					__('grid.action.remove'),
+					'delete'
+				));
 
 				$this->addAction(new LinkAction(
 						'requestAccount',
diff --git a/controllers/grid/users/stageParticipant/form/RemoveParticipantForm.inc.php b/controllers/grid/users/stageParticipant/form/RemoveParticipantForm.inc.php
new file mode 100644
index 00000000000..5126539ef5e
--- /dev/null
+++ b/controllers/grid/users/stageParticipant/form/RemoveParticipantForm.inc.php
@@ -0,0 +1,126 @@
+<?php
+
+/**
+ * @file lib/pkp/controllers/grid/users/stageParticipant/form/RemoveParticipantForm.inc.php
+ *
+ * Copyright (c) 2014-2021 Simon Fraser University
+ * Copyright (c) 2003-2021 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * @class RemoveParticipantForm
+ * @ingroup controllers_grid_users_stageParticipant_form
+ *
+ * @brief Form to optionally notify a user when removing them as a stage participant.
+ */
+
+import('lib.pkp.classes.form.Form');
+
+class RemoveParticipantForm extends Form {
+	/** @var Submission */
+	var $_submission;
+
+	/** @var int */
+	var $_stageId;
+
+	/** @var StageAssignment */
+	var $_stageAssignment;
+
+	/**
+	 * Constructor
+	 * @param $submission Submission
+	 * @param $stageAssignment StageAssignment
+	 * @param $stageId int
+	 */
+	function __construct($submission, $stageAssignment, $stageId) {
+		parent::__construct('controllers/grid/users/stageParticipant/removeParticipantForm.tpl');
+		$this->_submission = $submission;
+		$this->_stageAssignment = $stageAssignment;
+		$this->_stageId = $stageId;
+
+		$this->addCheck(new FormValidatorPost($this));
+		$this->addCheck(new FormValidatorCSRF($this));
+	}
+
+	/**
+	 * Initialize form data
+	 */
+	function initData() {
+		$request = Application::get()->getRequest();
+        $user = $request->getUser();
+        $submission = $this->_submission;
+        $userTobeRemovedId = $this->_stageAssignment->getUserId();
+        $userDao = DAORegistry::getDAO('UserDAO'); /* @var $userDao UserDAO */
+        $userToBeRemoved = $userDao->getById($userTobeRemovedId);
+
+        $defaultMessage = __('editor.submission.removeStageParticipant.email.body', [
+            'userName' => $userToBeRemoved->getFullName(),
+            'contextName' => $request->getContext()->getLocalizedName(),
+            'submissionTitle' => $submission->getLocalizedTitle()
+        ]);
+        $defaultMessage .= $user->getContactSignature();
+
+        $this->setData('assignmentId', $this->_stageAssignment->getId());
+        $this->setData('stageId', $this->_stageId);
+        $this->setData('submissionId', $submission->getId());
+        $this->setData('personalMessage', $defaultMessage);
+        $this->setData('skipEmail', false);
+	}
+
+	/**
+	 * @copydoc Form::fetch()
+	 */
+	function fetch($request, $template = null, $display = false) {
+		$templateMgr = TemplateManager::getManager($request);
+		$templateMgr->assign(array(
+			'reviewRoundId' => null,
+			'reviewerId' => $this->_stageAssignment->getUserId(),
+			'assignmentId' => $this->_stageAssignment->getId(),
+			'stageId' => $this->_stageId,
+			'submissionId' => $this->_submission->getId(),
+			'personalMessage' => $this->getData('personalMessage'),
+		));
+		return parent::fetch($request, $template, $display);
+	}
+
+	/**
+	 * @copydoc Form::readInputData()
+	 */
+	function readInputData() {
+		$this->readUserVars(array('assignmentId', 'stageId', 'submissionId', 'personalMessage', 'skipEmail'));
+	}
+
+	/**
+	 * @copydoc Form::validate()
+	 */
+	function validate(...$functionArgs) {
+		return parent::validate(...$functionArgs);
+	}
+
+	/**
+	 * @copydoc Form::execute()
+	 */
+	function execute(...$functionArgs) {
+		$request = Application::get()->getRequest();
+		if ($this->getData('skipEmail')) return parent::execute(...$functionArgs);
+
+		$submission = $this->_submission;
+		$fromUser = $request->getUser();
+
+		$userDao = DAORegistry::getDAO('UserDAO'); /* @var $userDao UserDAO */
+		$user = $userDao->getById($this->_stageAssignment->getUserId());
+		if (!$user) return parent::execute(...$functionArgs);
+
+		import('classes.mail.ArticleMailTemplate');
+		$mail = new ArticleMailTemplate($submission, 'NOTIFICATION_CENTER_DEFAULT');
+		$mail->addRecipient($user->getEmail(), $user->getFullName());
+		$mail->setSubject(__('editor.submission.removeStageParticipant'));
+		$mail->setBody($this->getData('personalMessage'));
+
+		if ($mail->isEnabled() && !$mail->send($request)) {
+			$notificationMgr = new NotificationManager();
+			$notificationMgr->createTrivialNotification($fromUser->getId(), NOTIFICATION_TYPE_ERROR, array('contents' => __('email.compose.error')));
+		}
+
+		return parent::execute(...$functionArgs);
+	}
+}
\ No newline at end of file
diff --git a/locale/en_US/submission.po b/locale/en_US/submission.po
index f318d60acb7..25af4392ad7 100644
--- a/locale/en_US/submission.po
+++ b/locale/en_US/submission.po
@@ -1388,6 +1388,15 @@ msgstr ""
 msgid "editor.submission.removeStageParticipant"
 msgstr "Remove Participant"
 
+msgid "editor.submission.removeStageParticipant.email.body"
+msgstr ""
+"\n"
+"\t\t\t{$userName}:<br />\n"
+"<br />\n"
+"You have been removed as a participant in the &quot;{$submissionTitle}&quot; submission, "
+"on the {$contextName}.<br />\n"
+"<br />\n"
+
 msgid "editor.submission.removeStageParticipant.description"
 msgstr ""
 "You are about to remove this participant from <strong>all</strong> stages."
diff --git a/locale/es_ES/submission.po b/locale/es_ES/submission.po
index 4d6b9af608f..837719a4fa3 100644
--- a/locale/es_ES/submission.po
+++ b/locale/es_ES/submission.po
@@ -1412,6 +1412,15 @@ msgstr ""
 msgid "editor.submission.removeStageParticipant"
 msgstr "Eliminar participante"
 
+msgid "editor.submission.removeStageParticipant.email.body"
+msgstr ""
+"\n"
+"\t\t\t{$userName}:<br />\n"
+"<br />\n"
+"Has sido eliminado como participante de lo envío &quot;{$submissionTitle}&quot;, "
+"en {$contextName}.<br />\n"
+"<br />\n"
+
 msgid "editor.submission.removeStageParticipant.description"
 msgstr ""
 "Está a punto de eliminar a este participante de <strong>todas</strong> las "
@@ -2209,4 +2218,4 @@ msgstr ""
 #~ msgstr "Explorar {$numTitles} títulos"
 
 #~ msgid "catalog.noTitlesSection"
-#~ msgstr "No se ha publicado ningún título aún para esta sección."
+#~ msgstr "No se ha publicado ningún título aún para esta sección."
\ No newline at end of file
diff --git a/locale/pt_BR/submission.po b/locale/pt_BR/submission.po
index a8cafe1eb17..552bf12fd41 100644
--- a/locale/pt_BR/submission.po
+++ b/locale/pt_BR/submission.po
@@ -1398,6 +1398,15 @@ msgstr ""
 msgid "editor.submission.removeStageParticipant"
 msgstr "Remover Participante"
 
+msgid "editor.submission.removeStageParticipant.email.body"
+msgstr ""
+"\n"
+"\t\t\t{$userName}:<br />\n"
+"<br />\n"
+"Você foi removido como participante da submissão &quot;{$submissionTitle}&quot;, "
+"em {$contextName}.<br />\n"
+"<br />\n"
+
 msgid "editor.submission.removeStageParticipant.description"
 msgstr ""
 "Você está prestes a remover este participante de <strong>todos</strong> os "
@@ -2555,4 +2564,4 @@ msgstr "Por favor, divulgue quaisquer conflitos de interesse que este autor poss
 #~ msgstr "{$numTitles} títulos"
 
 #~ msgid "catalog.noTitlesSection"
-#~ msgstr "Sem publicações para esta seção no momento."
+#~ msgstr "Sem publicações para esta seção no momento."
\ No newline at end of file
diff --git a/templates/controllers/grid/users/stageParticipant/removeParticipantForm.tpl b/templates/controllers/grid/users/stageParticipant/removeParticipantForm.tpl
new file mode 100644
index 00000000000..fd3896bc06a
--- /dev/null
+++ b/templates/controllers/grid/users/stageParticipant/removeParticipantForm.tpl
@@ -0,0 +1,32 @@
+{**
+ * templates/controllers/grid/users/stageParticipant/removeParticipantForm.tpl
+ *
+ * Copyright (c) 2014-2021 Simon Fraser University
+ * Copyright (c) 2003-2021 John Willinsky
+ * Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
+ *
+ * Form to optionally notify a user when removing them as a stage participant.
+ *}
+
+<script type="text/javascript">
+	$(function() {ldelim}
+		$('#removeParticipantForm').pkpHandler('$.pkp.controllers.form.AjaxFormHandler');
+	{rdelim});
+</script>
+
+<form class="pkp_form" id="removeParticipantForm" method="post" action="{url op="removeStageAssignment"}" >
+	{csrf}
+	<input type="hidden" name="assignmentId" value="{$assignmentId|escape}" />
+	<input type="hidden" name="stageId" value="{$stageId|escape}" />
+	<input type="hidden" name="submissionId" value="{$submissionId|escape}" />
+
+	{fbvFormSection title="stageParticipants.notify.message" for="personalMessage"}
+		{fbvElement type="textarea" name="personalMessage" id="personalMessage" value=$personalMessage rich=true}
+	{/fbvFormSection}
+
+	{fbvFormSection for="skipEmail" size=$fbvStyles.size.MEDIUM list=true}
+		{fbvElement type="checkbox" id="skipEmail" name="skipEmail" label="email.skip"}
+	{/fbvFormSection}
+
+	{fbvFormButtons submitText="grid.action.remove"}
+</form>
\ No newline at end of file