EXCLUSIVE: Stephanie Koenig (Lessons in Chemistry, English Teacher) has joined the cast of Apple TV’s Platonic for Season 3 in a recurring role. She will play Alex, a lawyer who just began working at Charlie’s (played by Luke Macfarlane) firm.
Source: [Deadline](https://deadline.com/2026/08/stephanie-koenig-cast-apple-tv-platonic-season-3-1237043127/)