Jack

Jack may refer to:
* Jack Carroll, an Old Earth engineer.
* Jack Damana, an officer of the RMN Office of Naval Intelligence.
* Jack Frazier, an officer of the Royal Manticoran Navy.
* Jack Fuentes, an Erewhonese businessman and politician.
* Jack Hammond, another officer of the Royal Manticoran Navy.
* Jack Hardesty, an officer of the Grayson Space Navy.
* Jack McBryde, a Mesan security officer.
::You may also be looking for Jackson.