All are elevators of the larynx except -
Elevators : Primary elevators act directly as they are attached to the thyroid cartilage and include stylopharyngeus, salpingopharyngeus, palatopharyngeus and thyrohyoid. Secondary elevators act indirectly as they are attached to the hyoid bone and include mylohyoid (main), digastric, stylohyoid, geniohyoid.
Depressors : They include sternohyoid, sternothyroid and omohyoid.
Thyrohyoid
Digastric
Stylohyoid
Sternohyoid