Some side characters are Leonid who was Alexei's friend/servant who helped him by hanging out with him because he couldn't play outside due to the Hemophilia.

Maria who was one of Anastasia and Alexei's sisters she ends up being brought to the present and becomes a college student, Leonid comes to the present as well.

Another character that's secondary in this book is JB, a time agent who has been helping Jonah, Katherine, and Chip since the beginning here is also a missing child in history he is Eduard "Tete" Einstein who is Albert Einstein's son but he played an incredibly small part in this book (JB stands for Janitor Boy because when Jonah and Katherine first met him he was disguised as a janitor)

Side Characters