List of Stargate SG-1 characters

[4] For his portrayal of Hammond, Don S. Davis was nominated for a 2004 Leo Award in the category "Dramatic Series: Best Supporting Performance by a Male" for the season 7 episode "Heroes, Part 2".

The base extends many levels beneath the ground and is protected from most forms of attack including indirect nuclear detonations, also serving to contain biological, chemical or alien hazards to the outside world by means of a 'lockdown' status.

Alexandra L. Doig played Dr. Carolyn Lam, the daughter of Major General Hank Landry and chief medical doctor at SGC after Dr. Fraiser was killed.

Chief Master Sergeant Walter Harriman (also known as the Chevron Guy among others, portrayed by Gary Jones, seasons 1–10) joined the Stargate Command (SGC) after excelling in navigation and automatic flight control operations during the first Gulf War.

When the Goa'uld Apophis attacks the SGC in the pilot episode of Stargate SG-1, Kawalsky is re-introduced as a captain and reunites with his former teammates to bring Daniel Jackson back to Earth.

The official mandate of the NID is to provide vital civilian oversight of top secret military operations, but one of their unofficial primary goals is to procure alien technologies.

His first significant appearance follows in "Smoke & Mirrors", where he helps uncovering a shadow group behind the NID who tried to attribute Senator Kinsey's apparent assassination to O'Neill.

After further antagonizing SG-1 through rogue NID operations in "Touchstone" and "Shades of Grey", and helping SG-1 in "Foothold", Maybourne flees to Russia and aids in establishing the Russian Stargate Program.

He had ascended to power using an Ancient time-travelers log of his journeys into the future of the planet and ended up facing a Goa'uld invasion, but the soldiers were repelled by Jackson and Teal'c with help from one of the villagers, and O'Neill destroyed in the ship in orbit, killing the System Lord behind the attack.

In "Politics", Kinsey ignores warnings of an imminent Goa'uld invasion and instead manages to briefly shut down Stargate Command for budget reasons, only for SG-1 to prove the program's worth and save Earth through defying orders.

However, the Goa'uld have completely infiltrated the Trust through their operatives working outside of the solar system, and have already implanted a symbiote within Kinsey to aid in their plans of starting a nuclear war between the US and Russia.

Kinsey holds the position of chairman of the Senate Appropriations Committee until season 7 and oversees the national defense budget of secret projects such as the Stargate Program.

Woolsey returns in the season 9 episode "Prototype" and encourages the SGC to take great risks with the captured Goa'uld-human-Ancient hybrid Khalek to learn more about the Ascension process.

[57] Being the US's representative on the newly formed International Oversight Advisory Committee (IOA), Woolsey and some colleagues are rescued by SG-1 and the crew of the Odyssey after a catastrophe at the Gamma Site in "The Scourge", which he later considers an "eye-opening experience".

[61] Colonel Frank Simmons, (played by John de Lancie, seasons 5–6) – The NID liaison to Stargate Command after Col. Harry Maybourne's arrest for treason.

Her fiancé, a scientist named Ernest Littlefield (played by Keene Curtis and Paul McGillion), is the first human to have travelled through the Stargate since the ancient Egyptians buried it.

Six Daedalus-class battlecruisers appeared in the franchise: the Daedalus, the Odyssey, the Korolev, the Apollo, the Sun Tzu, and the George Hammond (named the Phoenix in an alternate timeline).

[70][71] For the Prometheus, the producers wanted to build something that was exactly the opposite of Goa'uld ships, which, according to Paul Mullie, are basically big empty rooms with nowhere to sit, no screens and no buttons to press.

In "Children of the Gods", set a year after the film, the Goa'uld Apophis attacks Abydos, abducting Sha're and her brother Skaara to serve as hosts for his queen Amonet and son Klorel.

The civilization of the Ancients in the Milky Way was decimated millions of years ago by a plague and those who did not learn to ascend travelled to the Pegasus galaxy on board Atlantis.

Although the Ancients banished her for her actions, Oma remains convinced of her responsibility to guide those beneath to the "Great Path" of enlightenment, even if this interferes in the lower planes of existence.

Oma is involved in Daniel Jackson's ascension in "Meridian" and forceful de-ascension in "Fallen", and also helps the entire Abydonian population ascend after Anubis's attack in season 6's "Full Circle".

After O'Neill manages to make friendly contact with the Asgard in their galaxy, Thor includes Earth in the Protected Planets Treaty to safeguard it from a direct Goa'uld attack.

Based on the god Anubis of Egyptian mythology, the character is first mentioned by name in season 5's "Summit" (although is alluded to in the earlier episode "Between Two Fires"), and makes his first appearance in "Revelations".

After Anubis' fleet is destroyed in season 7's "Lost City", Ba'al gains substantial power and wages a war against all other System Lords, driving them to the brink of defeat in early and mid-season 8.

Having made multiple clones of himself, Ba'al begins a campaign to battle the invading Ori for control of the galaxy in "Stronghold" and tries to gain power through various means in "Off the Grid", and season 10's "Insiders" and "The Quest".

When their trade partner Vala Mal Doran does not keep an agreement in their first appearance in season 8's "Prometheus Unbound", she and Daniel are placed on a Lucian Alliance wanted list.

Fifth has escaped the time dilation field in the season 8 episode "New Order", and en route to the new Asgard homeworld of Orilla, he captures Samantha Carter and tortures her in revenge.

The new SGC recruit Lieutenant Elliot (played by Courtenay J. Stevens, season 5) blends with Lantash after a severe injury, but they give their lives to save the rest of SG-1 and the Tok'ra, eliminating the entire Goa'uld invasion force with a vial of symbiote poison.

The Tollan have a strict policy against sharing technology with more "primitive" races, instituted after such a transfer caused the civilization of their neighboring planet Serita to destroy itself in a single day.

Beau Bridges played Hank Landry.
Doctor Janet Fraiser as portrayed by Teryl Rothery in Stargate SG-1
Gary Jones played Walter Harriman, an SGC technician who was also known as "Norman Davies" and "Chevron Guy"
Ronny Cox plays Robert Kinsey.
Picardo at ComicCon (2008)
Erick Avari played Kasuf in the film and the television series.
Apophis' symbol
Ba'al's symbol
Tony Amendola played Bra'tac from season 1 through 10 of Stargate SG-1 .
Morena Baccarin played Adria the Orici.
Carmen Argenziano played Samantha Carter 's father Jacob and the Tok'ra Selmak.