| Episode cast overview: | |||
| Richard Dean Anderson | ... | Colonel Jack O'Neill | |
| Michael Shanks | ... | Dr. Daniel Jackson | |
| Amanda Tapping | ... | Captain Samantha Carter | |
| Christopher Judge | ... | Teal'c | |
| Don S. Davis | ... | Major General George Hammond | |
| Jay Acovone | ... | Major Charles Kawalsky | |
| Kevin McNulty | ... | Dr. Warner | |
| Gary Jones | ... | Sgt. Walter Harriman | |
| Alan Rachins | ... | Colonel Kennedy | |
| Warren Takeuchi | ... | Young Doctor | |
The team, now designated SG-1 are planning their next foray through the gate as they try to map out the variety of sites available to them and locate their missing friends. O'Neill asks that Teal'c be allowed to join his team but Gen. Hammond thinks that will be unlikely given that he is the host for a Goa'uld. Unknown to anyone, however, is that O'Neill's close friend, Maj. Charles Kawalsky, leader of SG-2, has been infected by a Goa'uld, an immature version that has not yet taken complete control of the host. Kawalsky is having regular blackouts during which the Goa'uld is trying to return to the gate. An MRI reveals what is wrong but it's unlikely the creature that has fused itself to Kawalsky's spine can be surgically removed. Meanwhile, Col. Kennedy arrives to question Teal'c who has pledged his loyalty to his new world. Written by garykmcd
Colonel O'Neill asks to General Hammond to let Teal'c join his SG-1 team but Hammond is reluctant since the alien hosts a Goa'uld. The arrogant Colonel Kennedy comes from Langley and wants to use Teal'c as a guinea pig to study the Goa'uld. Meanwhile, Major Charles Kawalsky is not aware that he has a Goa'uld inside him and has headaches and blackouts. He goes to the infirmary and kills the doctor, trying to escape through the gate. However he is captured by O'Neill and Dr. Warner finds the alien form around his spine. He decides to submit Kawalsky to a surgery to remove the Goa'uld. Will he succeed in the surgery? And what will be the fate of Teal'c?
"The Enemy Within" is a dramatic and tragic episode, with another great story. Kawallsky was a promising character and his loss was very sad. The attitude of General Hammond shows that he is a qualified leader, protecting his men. My vote is eight.
Title (Brazil): "The Enemy Within"