Steven Caldwell

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Steven Caldwell
Steven Caldwell.jpg


Home planet







Steven Caldwell - List of Appearances

Portrayed by

Mitch Pileggi

Colonel Steven Caldwell is a male Tau'ri, a member of the United States Air Force and the commander of the Daedalus.


He led the Daedalus to Atlantis to help defend it from the Wraith. After arriving they intercepted communications between Atlantis and John Sheppard, aboard a cloaked Puddle Jumper. He radioed Sheppard to disengage his cloak, giving his security code and beamed him out before the Nuclear bomb on the Jumper detonated and destroyed one of the Hive ships. He had the Zero Point Module aboard sent down to Atlantis before engaging the other Hive ship and the Cruisers. After their missiles were intercepted, they beamed a warhead aboard the last Hive ship and destroyed it. When more Hive ships were detected coming to Atlantis, Caldwell led the Daedalus to intercept and they managed to destroy two of them before the Wraith engaged counter-measures to stop them. The ship became overwhelmed and Caldwell ordered them back to Atlantis. Landing on the city as the ship needed repairs, he took part in a briefing about what to do next. He took personnel aboard the Daedalus and then launched a nuclear warhead to above Atlantis while it cloaked as part of a plan to make it appear that they destroyed the city. (SGA: "The Siege, Part 3")

He spent a month aboard the Daedalus traveling back to Earth where he hoped to become the new military leader on Atlantis but Elizabeth Weir insisted that Sheppard remain in the position. He remained as the ships commander and took yet another month long trip back to Atlantis. After an accidental death aboard, Caldwell didn't want to stop the ship but later when Meredith Rodney McKay said the death was not accidental, Cadlwell stopped the ship. A Wraith Computer virus took control of the ship and had to be purged. (SGA: "The Intruder") He was against sending personnel to search for Aiden Ford who he believed was a security risk and told Sheppard that he should do the right thing as Ford was no longer himself. (SGA: "Runner") He was on board with McKay working on Project Arcturus, hoping it would provide the energy needed for everything. When Weir didn't want it worked on after an accident, Caldwell said he would recommend to The Pentagon that McKay be allowed to continue. On the journey back to Earth, Caldwell had the Daedalus stop by Doranda to check on McKay and had to provide them with cover on their journey to the Stargate. (SGA: "Trinity")

After a return trip to Atlantis, he postponed going back when Sheppard became infected by the Iratus bug retrovirus and offered to take over Sheppard's duties. Weir later allowed him to take over but was angered that he immediately began changing things as it sent a message that Sheppard wouldn't make it. When Sheppard began changing and escaped, Caldwell sent teams to find him ordering them to use force if necessary but was overruled by Weir. (SGA: "Conversion") He took Sheppard's team aboard the Daedalus to investigate a Lantean warship, finding the crew in stasis aboard. Sheppard entered one of their pods to go into the Virtual reality they were inside but when they detected incoming Cruisers, Caldwell wanted Sheppard pulled out as he intended to destroy the ship and leave. He was convinced to wait for Sheppard to come out as to pull him out may be dangerous. (SGA: "Aurora")

He took the Daedalus to try to rescue Sheppard's team from a Hive ship but found a second hive ship. After no contact with the team was made, Caldwell ordered an attack to stop them spreading information that Atlantis had survived. The two hives began fighting one another and were destroyed. (SGA: "The Hive") At some point he was taken by The Trust and implanted with a Goa'uld. The symbiote was later beamed out of Caldwell. (SGA: "Critical Mass") He returns to duty and comes to Atlantis, wanting to try to make up for what the Goa'uld did but Weir told him that it wasn't necessary. When Weir is taken over by a consciousness and asks that Sheppard allow himself to take on the consciousness of her husband to give them a chance to say goodbye, Caldwell is against it. The two end up being enemy soldiers and begin hunting one another down. Caldwell takes command and sends out teams to track them down. The consciousness in Weir taunts Caldwell, telling him that the others don't trust him. When the consciousness in Weir orders Teyla to kill Sheppard or she would gas expedition personnel, Caldwell says he wouldn't tell Teyla what to do. After the consciousnesses finally fade away, Caldwell goes to see Sheppard and Weir. (SGA: "The Long Goodbye")

Caldwell was redirect to Taranis to help evacuate the Taranians and said that it would take at least four trips to get everyone back to Atlantis due to the limited life support capacity of the ship. On the next trip they detected only a few life signs but beamed them all up including Teyla and Ronon. Caldwell decided to wait to the last minute for anyone else to be detected and as the supervolcano erupted on the planet, a ship exited hyperspace in front of them with the rest of Sheppard's team and the surviving Taranians aboard. (SGA: "Inferno") When Michael Kenmore returned to Atlantis with a Hive ship and they wanted to use the Iratus bug retrovirus to turn enemy Wraith into a food source, Caldwell took the Daedalus to observe a test and had to defend the Hive when it came under attack. Leaving for another test the Daedalus came under attack from the Hive and another one before they jumped away. (SGA: "Allies")

It was discovered that the Wraith had taken the location of Earth and information to upgrade their hyperdrives to reach it. Weir wanted Caldwell to go after them and he made her aware that she was essentially sending him and his ship on a suicide mission as the Daedalus was still damaged. They headed out and engaged the Hives, accompanied by the Orion and managed to destroy one of the Hives and disable the other but the Orion was destroyed and the Daedalus was severely damaged. A plan to use the retrovirus on the disabled Hive and then take it over was performed. (SGA: "No Man's Land") He and his ship went to find out what happened to Sheppard's team and the converted Wraith from the Hive ship but found no life signs, luckily Sheppard's team was alive aboard a cloaked Jumper. (SGA: "Misbegotten")

He was hesitant to take the Daedalus to Sateda to rescue Ronon as their was a Hive ship in orbit, not wanting to risk his crew. Sheppard asked him to get them close and they would take a Jumper and Caldwell told him that there would be no rescue if they were captured. (SGA: "Sateda") Caldwell took the Daedalus to the Midway Space Station for the first test of the McKay-Carter Intergalactic Gate Bridge. When a Lantean ship was detected passing them by at nearly light speed, the ship's commander, Captain Helia contacted them requesting help and Caldwell responded that it would be an honor to assist them. (SGA: "The Return, Part 1") After the Lanteans took control of Atlantis and the Asurans came and wiped them out, Caldwell was sent aboard the Daedalus to destroy the city. Reaching it they received word from the city that it had been taken back and Caldwell sent a team down to confirm. (SGA: "The Return, Part 2")


When the Daedalus arrived at Atlantis, Caldwell called down to begin transporting people but Weir told him no. She explained that the Flagisallus, a whale-like fish, was causing people to fall ill and it was better if the crew remained aboard. Caldwell suggested destroying the Flagisallus using their Drones. He later took the ship to the Lantea Star to deflect a Coronal mass ejection away from Lantea. (SGA: "Echoes") He picked up Sheppard's team from M4D-058 and later sent them back down and used the Daedalus to fire on some locations to help simulate an attack. (SGA: "The Game") He redirected the Daedalus to a planet to search for Michael Kenmore and his Bug people. (SGA: "Vengeance") He took the Daedalus to Atlantis with the Apollo to take part in a mission to destroy Asuran ships. After the Asurans retreated to their planet, a fleet of ships was recruited, including Hive ships and Caldwell remarked that he thought working with the Russians after the Cold War was strange but this was more strange. (SGA: "Be All My Sins Remember'd")


He transported Sheppard's and Lorne's teams to a planet to search for Teyla and when Michael's Cruiser arrived, he had them open fire on it. Sheppard radioed that Teyla may be aboard and he ordered the ship disabled but it escaped. (SGA: "The Kindred, Part 1") He took the Daedalus to M2S-445 and soon encountered Michael's Cruiser, but was told that Teyla was aboard so he ordered it disabled. He was not convinced to allow Sheppard's team to go aboard the Cruiser to rescue Teyla but relented as they would lose their shields eventually so there was no harm in trying. After Teyla was rescued, Caldwell ordered the cruiser destroyed. (SGA: "Search and Rescue") He welcomed Todd and a Wraith delegation aboard the Daedalus. When Richard Woolsey attempted to give a speech, Todd dismissed him to instead get to work. Caldwell asked Woolsey who he was referencing in his speech and Woolsey told him nevermind. When Todd had to send two of his Cruisers away, they were destroyed entering hyperspace and Caldwell asked Marks what had happened. Todd blamed them and used Wraith Stun rods to stun the bridge crew. (SGA: "First Contact")


He took the Daedalus to find a Zero Point Module-powered Hive ship and dropped Sheppard's team off in a Jumper to approached early. When they came under fire, he had the Daedalus moved in to rescue them but the Hive proved too powerful and quickly depleted their shields before suddenly leaving. They learned that it had received a signal from an alternate reality that contained the location of Earth. They were able to repair the ship enough to get back to Atlantis. (SGA: "Enemy at the Gate")