Yes, Marcus Scribner has only one sibling in his family. He has a sister.

The name of his sister is Athena Scribner. We are currently unable to know whether he is older or younger than his sister as she has not revealed her age yet.

Marcus has always been interested in performing and wants to pursue a career in it since he was a child.

Marcus is very private about his personal life and does not share much information about his family members with the public.