Timothy McGee: Transforming from a timid probie into a confident field agent and leader.
Ellie Bishop: Progressing from a by-the-book analyst to a seasoned investigator.
Jimmy Palmer: Advancing from a nervous assistant to a competent medical examiner.
Ziva David: Revealing a more mature and open side upon her return.
Leon Vance: Demonstrating a shift from a strict leader to a more understanding director.