Tag-along

A Tag-along is a member of the party with little to no signifigant role. The reasons of a Tag-along joining the party span from protection purposes to a promise to meet again to a means of getting to his/her home dimension.

Contributing to the fight
Some Tag-alongs will provide assistance to the main characters in battle.

Providing support
A Tag-along will often stand at the sidelines of a fight cheering for the fighters. At times, they would step in and give them a little help.

Assistance
Based on his/her special skills, a Tag-along will be assigned to help a main character in a mission.