You could use get_comments() instead. The code in this forum post gives an example of how you’d do that:
<?php
$recent_comments = get_comments( array('post_id' => $newest_post_id,) );
foreach ($recent_comments as $comment)
{
?>
<?php
$comment_id = get_comment($comment->comment_ID);
$author = $comment_id->comment_author;
$commentdate = $comment_id->comment_date;
$content = $comment_id->comment_content;
?>
<p><?php echo $author; echo $commentdate;?></p>
<p><?php echo $content;?></p>
<?php
} ?>
Best of luck!