Garrett is one of Nick's soccer friends who is also close friends with Bram. Simon initially describes him as a bit of a jerk, though Garrett is supportive when Simon and then Bram come out. He has a crush on Leah, though it's not clear if he ever acts on it.
Garrett Character Timeline in Simon vs. the Homo Sapiens Agenda
The timeline below shows where the character Garrett appears in Simon vs. the Homo Sapiens Agenda. The colored dots and icons indicate which themes are associated with that appearance.
...school have to do this. Simon asks Martin, who's sitting nearby, if he's going to Garrett's Halloween party the next day. In his excitement to accept, Martin trips over his shoelace... (full context)
...Wise shows Shakespeare’s Twelfth Night in English class, and Simon watches soccer boys including Nick, Garrett, and Bram squeeze onto Mr. Wise's couch in tiny cheerleading uniforms. Simon is surprisingly attracted... (full context)
...Monday, Simon spots Bram in English class and thinks he looks adorable sitting next to Garrett. Garrett compliments Simon's performance and explains that Bram made him go to the play three... (full context)