<Li> Kate Walsh as Olivia Baker, Hannah's mother, who is determined to uncover the truth about the events leading to her daughter's suicide . </Li> <Li> Brian d'Arcy James as Andy Baker, Hannah's father and Olivia's husband . (season 2; recurring season 1) </Li> <Ul> <Li> Josh Hamilton as Matt Jensen, Clay's father, a psychologist . </Li> <Li> Michele Selene Ang as Courtney Crimsen, a closeted student at Liberty High who is responsible for spreading rumors about Hannah to protect the secret of her own sexual orientation . In season 2, she comes out on the stand during the trial of Hannah Baker, confessing her actions against Hannah that landed her on the tapes . </Li> <Li> Steven Silver as Marcus Cole, the self - centered student body president at Liberty High, who is responsible for humiliating and attempting to sexually assault Hannah on a date . In season 2, he is suspended from school after lying on the stand during the trial and following the leaked release of the tapes soon after . </Li> <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 terrorizes a number of individuals testifying at Hannah Baker's trial . </Li> <Li> Brandon Larracuente as Jeff Atkins, a student at Liberty High and friend of Clay, who died in a tragic car accident . </Li> <Li> Steven Weber as Gary Bolan, the principal at Liberty High . </Li> <Li> Keiko Agena as Pam Bradley, the Communications teacher at Liberty High . </Li> <Li> Mark Pellegrino as Deputy Bill Standall, Alex's father, a police officer . </Li> <Li> Joseph C. Phillips as Greg Davis, Jessica's father, a member of the Air Force . </Li> <Li> Cindy Cheung as Karen Dempsey, Zach's mother . </Li> <Li> Henry Zaga as Brad, Tony's boyfriend . In season 2, it is revealed that the couple broke up sometime between the events of season 1 and 2 . </Li> <Li> Giorgia Whigham as Kat, a friend of Hannah and her former next - door neighbor . </Li> <Li> Robert Gant as Todd Crimsen, one of Courtney's fathers . </Li> <Li> Wilson Cruz as Dennis Vasquez, the lawyer representing Hannah's parents at the end of season 1 and during season 2 . </Li> </Ul> <Li> Josh Hamilton as Matt Jensen, Clay's father, a psychologist . </Li>

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