You need to add a custom column to the user list screen like so:
// Add a custom user column called Photo with a column key of user_photo
// and re-arrange the columns array so our new column appears first.
function add_user_columns( $defaults ) {
$new_order = array();
foreach ( $defaults as $key => $title ) {
if ( 'username' === $key ) {
$new_order['user_photo'] = __( 'Photo', 'your_textdomain' );
}
$new_order[ $key ] = $title;
}
return $new_order;
}
add_filter( 'manage_users_columns', 'add_user_columns', 15 );
// Add data to our user column, specifically in your case
// get the photo from user meta
function add_custom_user_columns( $value, $column_name, $id ) {
if ( 'user_photo' === $column_name ) {
// replace `$meta_key` with the relevant key that holds the photo
return get_user_meta( $id, $meta_key, true );
}
}
add_action( 'manage_users_custom_column', 'add_custom_user_columns', 15, 3 );