Shane Tinsley was a student at McKinley High and a recurring character on Glee that made his debut in the first episode of Season Three, The Purple Piano Project. He is the linebacker for the McKinley Titans, and the ex-boyfriend of Mercedes. Shane dated Mercedes from sometime before The Purple Piano Project until the episode Heart, where she ended the relationship because of her strong feelings for Sam Evans.
He is portrayed by LaMarcus Tinker.
He is introduced to the show as Mercedes' boyfriend. It is also revealed that he is the new linebacker for the football team. He is shown to be very supportive of his girlfriend, and is one of the few people to enjoy New Directions' performance of We Got the Beat.
Shane encourages Mercedes to audition for the role of Maria. He is also seen dancing in the background while Mike sings Cool. Meanwhile, Shane is seen supporting Mercedes when she battles with Rachel to get the role of Maria. After getting applause, Shane kisses Mercedes and hugs her.
It seems as if Shane and Mercedes walk to classes together. Shane is seen taking Mercedes away from Sam after Sam is slushied and Mercedes tries to help him.
Mercedes breaks up with Shane after telling him about her kissing Sam in Michael. He is seen crying as she tells him this.
- Main article: Mercedes-Shane Relationship
He is introduced as Mercedes' boyfriend whom she met during the summer, after Sam transferred from McKinley. Shane is shown as an encouraging boyfriend as he encourages Mercedes to go for Maria and not let Rachel push her around. He also waits for her and goes to lunch with her in Yes/No. They break up in Heart and he is shown crying. Mercedes tells Sam that he said "it was like someone punched him in the heart."
Shane since finds a new girl who he takes as his prom date to the McKinley Senior Prom. He is shown very happy with her when he gives Mercedes a wave and a smile and Mercedes does the same back to him.
- He was rumored to be named Marcus.
- Shane was supposed to have a bigger role in Season Three, but due to Chord Overstreet's return, his role was decreased.