<Li> Ajiona Alexus as Sheri Holland, a student and cheerleader at Liberty High who forms a bond with Clay but is also on the tapes when her actions result in Jeff's accidental death . </Li> <Li> Tommy Dorfman as Ryan Shaver, a student at Liberty High who betrayed Hannah's trust . </Li> <Li> Sosie Bacon as Skye Miller, an estranged friend of Clay . In the second season, Skye and Clay date for while before she leaves for a "fresh start", following another self - harm incident which resulted in her bipolar disorder diagnosis . </Li> <Li> Timothy Granaderos as Montgomery de la Cruz, a bully who is a student at Liberty High . In season 2, he secretly terroizes a number of individuals testifying at Hannah Baker's trial . </Li>

Who plays mrs. davis on 13 reasons why