|“||Sycorax strong! Sycorax mighty! Sycorax rock!||„|
|~ The Sycoraxs creed.|
The Sycoraxs were a superstitious race of warriors and intergalactic plunderers, They first appear in the first ever Doctor Who Christmas Special called "The Christmas Invasion". They later briefly appeared in the episode "The Pandorica Opens" as part of the alliance and helped trap the doctor in the Pandorica.
In 102, the Sycorax were among the races who joined the Alliance. They came to Stonehenge and helped imprison the Eleventh Doctor in the Pandorica to "save" the universe.
In The Christmas Invasion, At Christmas 2006, A tribe of Sycoraxs was led by a Sycorax leader named Fadros Pallujikaa and they plan to invade to Earth by controlling the humans using blood control and travel to the Solar System in asteroid ship to enter and crash into Earth's Atmosphere, The Sycorax Leader used a sample of blood control to hypnotized most of the humans around the world and threaten to kill them by falling to their deaths with A+blood unless the rest of humanly surrender themselves and give them half of the population as slaves.
The Sycorax Leader picked up a signal from TARDIS' advanced technology and teleported the TARDIS (along with Rose Tyler, Mickey Smith and the Tenth Doctor inside of it) to their ship. The Tenth Doctor press a button to active the blood control, but Humans didn't fall in to deaths instead were free from the Sycoraxs' blood control leaving the humans safe from harm as the Tenth Doctor known all along that the Humans have survival instincts would break free the blood control.
The Tenth Doctor then challenged the Sycorax Leader to a sword duel for the Earth, The Tenth Doctor won the sword duel against the Sycorax Leader and order Sycorax Leader to leave Earth and never return and along the Sycoraxs, The Tenth Doctor spare the Sycorax Leader's life after he agreed, However the Sycorax lie and charge at the Tenth Doctor with his sword in the air, Lucky the Tenth Doctor throw a satsuma at a button and then hit the ground that the Sycorax Leader standing on open and the Sycorax Leader went screaming and falling to his death.
The Tenth Doctor tells the rest of Sycoraxs to tell others about the stars and Earth is defensed, However when the Sycorax ship was still leaving Earth, Harriet Jones ordered Torchwood to use the salvaged alien weapon to fire a ray at the Sycorax ship, causing it to explode and destroying Sycoraxs.