Andy and Mandy

From Wikitrix

Andy and Mandy are twins from Camp Opinicon in the episode "Camp Fear". Although, originally, they shared everything, after being threatened by the mutated fungus their personality changed and they began to bicker with one another over whose fault it was that they were in such a bad situation. They help Gwen and Gilbert escape the assault of the Fungal Brain's minions long enough for Ben to kill it.