Originally, all of the Wraith males featured on the series were played by the same actor: James Lafazanos.
The on-set Stargate is made out of rubber.
The production crew actually have two Puddle Jumpers. The first is closed, and is used on location, and the second is an open Jumper that stays on set. The open jumper is used to film interior shots.
The character of Dr. Weir, played by Torri Higginson, was originated by Jessica Steen in the two part episode of Stargate SG-1 "Lost City".
The load bearing vests worn by the "Stargate: Atlantis" team are Blackhawk Omega tactical vests.
Dr. McKay's real first name is Meredith.
Joe Flanigan (John Sheppard) and David Hewlett (Rodney McKay) are the only actors to appear in all 100 episodes. Rachel Luttrell (Teyla Emmagan) is the only other regular cast member to stay with the series throughout its entire run.
Ben Browder was the producers and series creators original choice for the role of Major John Sheppard. Joe Flanigan was hired for the role when Browder could not take the role due to filming Farscape: The Peacekeeper Wars (2004) (TV). Browder was later cast in the role of Lt. Col. Cameron Mitchell on Stargate SG-1.
In the season 5 episode 20 "Enemy At The Gate", Colonel Samantha Carter mentions she'll be taking over control of the Daedalus-class ship, The Phoenix, which has been renamed The General Hammond. This is in honour of 'Don S. Davis'' character who, similar to 'Davis' himself, is mentioned to have died of a heart attack.
Paul McGillion (Dr. Carson Beckett) was also in _"Stargate SG-1" (1997) {The Torment of Tant... "Stargate SG-1" (1997) {The Torment of Tantalus (#1.10)}_ as the young Ernest Littlefield.
The shooting set of the Stargate Atlantis base, specifically the balconies where the humans from Earth celebrated their first victory as well as several times depicting the outdoor dining area is the exact same location as the Colson Industries' main office building from SG-1 Ninth Season titled 'The Covenant'.
While in the "dining room" of the female Wraith (Andee Frizzell), clearly seen on the table is the head of a creature. This creature is a Mastadge, which was seen in the original Stargate movie.
Weir notes that one of the first things they should do is throw away the ten thousand year old dead plants in Atlantis. She says this as she touches an ancient and dead potted plant. In later episodes you can see the dead plant, still not thrown out, through the windows of Weir's office.
Joe Flanigan does actually know how to fly the Helo that Sheppard and O'Neill were in, but for both budgetary reasons and safety concerns Flanigan's shots inside the Helo were all done in a studio or on location, and he was not permitted to try to fly.
Originally aired as a feature-length 90 minute episode, but usually split into two different episodes in syndication. These split episodes have different individual on-screen credits, omitting cast credits for the characters not present in each part. The credits and credit order on IMDb reflects the original complete/combined credits in the feature length episode.
When the 'Stargate Atlantis' pilot was filmed, there were four regular characters in Stargate SG-1, but only two of them (Jack O'Neill and Daniel Jackson) appear in Rising. According to Amanda Tapping, who played Samantha Carter, her character and Teal'c weren't allowed to appear due to rights issues. They were created for the Stargate SG-1 TV show, and including them in the new show would mean using the work from one of the producers to boost a new, different show. Jack and Daniel already appeared in the Stargate movie and therefore they weren't affected. Anyway, the four of them appear in several Stargate Atlantis episodes throughout its five seasons.
The character of Simon Wallis (Dr Weir's partner back on earth) featured in episodes 1.1, 1.8 and 2.2 is played by Garwin Sanford. The same actor played one of the main Tollan characters, Narim in stargate SG-1.
The character of Simon Wallis (Dr Weir's partner back on earth) features in episodes 1.1, 1.8 and 2.2 is played by Garwin Sanford. The same actor played one of the main Tollan characters, Narim, in Stargate SG-1.
Sheppard says that he doesn't really get into hockey. This is a reference to Stargate SG-1 and Jack O'Neill (star Richard Dean Anderson), who loves hockey.
The dog who appears as Dr. Elizabeth Weir's dog in episode #1.9, "Home", is Torri Higginson's actual pet.
This is the first episode of the series not to feature a puddle jumper and the only such episode from its first season.
SPOILER: This is the only appearance of Don S. Davis as General George Hammond in Stargate Atlantis. Of course it could be argued that, being the character actually an alien being who only took General Hammond's aspect, 'Don S. Davis (I)' never played General Hammond in this show at all.
Dr. Rodney McKay is watching "The Outer Limits," though the "control voice" that is played at the beginning, is voiced by Christopher Judge.
When his turn comes, the Czech scientist Dr. Radek Zelenka (David Nykl) reads his personal video message to his family in perfect Czech.
The episode is dedicated to Bob Scarabelli.
Hermiod the Asgard's muttered complaint is actually a reversed sentence, "When will these humans learn that there are consequences to action?".