Henry Mitchell Jr.

History
All we know about his biological family is Christopher Mercer is his father and Mr.Mercer is his grandfather. Also the only thing we know about his wife is that she was magical because his sons Samuel and Henry III show magic powers in "Cousins, Cousins, Everywhere." He is the adoptive son of Paige Matthews and Henry Mitchell. He has two sisters Kat and Tamora Mitchell.

Children with Unnamed Wife
He has two sons Samuel and Henry III. Samuel Christopher Mitchell was named after Henry Jr's adoptive grand- father Sam Wilder and Henry Jr's biological father. Henry Mitchell III was named after Henry Jr and Henry Jr's adoptive father Henry Mitchell.

Second-Cousin of the Charmed Ones
Henry Jr isn't seen much around the Halliwell home. Unlike his adoptive father, Henry Mitchell, he doesn't know that much about magic and really doesn't care for it either. His sons however love magic and try to hang around their Third-Cousins as much as they can.

Future Appearences
In the last episode, Henry Jr is seen with his grandson. Then his grandson orbs himself and Henry Jr to the car as Henry III is leaving to take his wife to the hospital. Not much more about this young boy is known but it is believed his name is Henry IV.

Notes and Trivia

 * The role of Henry Jr was orginally supposed to go to David Boreanaz, star of the spin-off Angel. But when the director cast the Olsen twins as Kat and Tamora, they felt Henry Jr should look younger than the girls not older because he is in fact younger. So the role was given to Jensen Ackles, star of Supernatural.
 * Henry Jr's birthdate is not identified.