 Kyra , also known by her title the Seer , is a fictional character from the American television supernatural drama Charmed , which aired on the WB Television Network ( the WB ) from 1998 to 2006 . Charmed follows the supernatural adventures of the Charmed Ones , a trio of sisters known as the most powerful witches of all time . The character was created by executive producer Brad Kern and was portrayed by actress Charisma Carpenter . Carpenter was invited on the show after acting with Charmed cast member Holly Marie Combs on the ABC Family television film See Jane Date ( 2003 ) . The actress ' original contract was a guest star role that included three episodes in season seven , with media outlets reporting the possibility of Carpenter becoming a series regular . 
