Colonel Jack O'Neill
In command of the SG-1 Team
Now the General Jack

  Dr. Daniel Jackson
  A civilian Archeologist
Ascended and came back

  Teal'c 
  A Jaffa  once first prime
to the goa'uld
System Lord Apophis.

  Major Samantha Carter
The brains of the SG-1 Team
and also the Looks!
Hubba Hubba

General George Hammond
commanding office for all or the
Stargate Program
Replaced by O'Neill

Jonas Quinn

Came to help SG-1
as a team member
 from his home of
 Kelowna
Gone Back home

  Dr Janet Fraiser

Commanding Medical Officer
at the StarGate Facility.

Now Deceased

THOR

Renewed at least once