DECLAN COYNE BY: LANDON LIBOIRON

Declan is Fiona Coyne's twin brother. He is rich, and usually calm and conceited. He humiliates Peter at a party in his mansion that he invited Peter and Mia to, resulting with Peter getting addicted to crystal meth. He develops an attraction to Jane, resulting with Jane cheating on Spinner Mason with Declan. Jane breaks up with him after Holly J. convinces her not to break Spinner's heart. Holly J. develops an attraction to him, and they eventually start dating. She tells him she loves him after they almost have sex, however he doesn't reply. His mother announces that they are moving back to New York, much to his disappointment. He tries to convince his mother to stay, and he finally tells Holly J. he loves her. He submits a video to a broadcasting network in New York for Holly J., who gladly accepts the internship offer. He attends Vanderbilt Prep in season 10.