Disclaimer: I don't own either NCIS or Supernatural. All due respect to the lucky people who do own them.
A/N: This is a list of the similarities and differences between Gibbs from NCIS and John Winchester from Supernatural. Extremely short.
Gibbs' wife was murdered. John's wife was murdered.
Gibbs hunted her killer. John hunted her killer.
Gibbs had a daughter. John has two sons
Gibbs' daughter was killed. John's sons have died (multiple times).
Gibbs has Ducky. John has Bobby.
Gibbs was in the marines; John was in the marines.
Neither one ever gave up.
A/N: Thank you to all of those who serve or have served in the armed forces. God bless you.