<Tr> <Th> Family </Th> <Td> Benjamin Turner (father; deceased) Elizabeth Turner (mother; deceased) Penny' Grams' Halliwell (ex-grandmother - in - law; deceased) Allen Halliwell (ex-grandfather - in - law; deceased) Patricia' Patty' Halliwell (ex-mother - in - law; deceased) Victor Bennett (ex-father - in - law) Prue Halliwell (ex-sister - in - law; deceased) Piper Halliwell (ex-sister - in - law) Paige Matthews (ex-sister - in - law) Leo Wyatt (ex-brother - in - law) </Td> </Tr> <Tr> <Th> Spouse (s) </Th> <Td> Phoebe Halliwell (ex-wife) </Td> </Tr> <P> Cole Turner is a fictional character on the WB television series Charmed, portrayed by series regular Julian McMahon between seasons three and five . McMahon returned for a guest appearance in the show's seventh season, for its 150th episode . Charmed is a series which focuses on three good witches, the prophesied "Charmed Ones", sisters who battle the forces of evil . Cole is an adversary - turned - ally of the sisters introduced in the third season and a love interest of main character Phoebe Halliwell, portrayed by Alyssa Milano . Like the show's main characters, Cole also possessed a number of magical abilities; the most commonly used were the power to teleport and the power to throw projective energy balls which could stun or kill . </P> <P> Within the series' narrative, Cole is half - human and half - demon by blood, and better known to the demonic world for over a hundred years as the legendary demonic assassin Belthazor . Cole is dispatched by the Source of all Evil himself to kill the Charmed Ones only to fall in love with then - youngest sister Phoebe, renounce evil and become a close ally of the Charmed Ones . Though Cole eventually completely rids himself of his demonic nature, and marries Phoebe in the fourth season, he never gains the trust of new youngest sister Paige (Rose McGowan). </P>

What episode does cole come back in charmed