User blog comment:Garr9988/Garrett'sa Timeline/@comment-4273152-20160411013752/@comment-4273152-20160411014033

In relation, I know that Felix was 19 when he joined the Warehouse, which happened pre-Seaon 4. It's been three years since the show ended, so he's around 21-22. So during these stories, he's officially 20 or 21, keeping in mind that his birthday is in December.