J
- Tom Jackson (actor)
- Jill Jacobson
- Scott Jaeck
- Anthony James
- Famke Janssen
- Harvey Jason
- Tony Jay
- Mae Jemison
- Ken Jenkins
- Salome Jens
- Penny Johnson Jerald
- Clifton Jones
- Isis J. Jones
- Renée Jones
- Ashley Judd
Read more about this topic: List Of Star Trek: The Next Generation Cast Members