<P> After his departure from Buffy , Angel appeared in his own spin - off series , titled Angel . Moving to Los Angeles , he starts a supernatural detective agency called Angel Investigations . He dedicates himself to `` helping the helpless , '' and becomes a Champion of The Powers That Be , who send him psychic visions through his employees Doyle ( Glenn Quinn ) , and later Cordelia ( Charisma Carpenter ) . In doing so , he frequently clashes with the powerful law firm Wolfram & Hart , who represent the evil of the world . During this season ( 1999 -- 2000 ) , Buffy and Angel appear in each other 's shows ( the Buffy episode `` Pangs '' and the Angel episode `` I Will Remember You '' ) , but are forced to accept that nothing has changed and they still ca n't or should n't be together . Later in the television season , Buffy crosses over into the episode `` Sanctuary '' where she attempts to kill rogue Slayer Faith ( Eliza Dushku ) to whom Angel shows compassion , and Angel appears in Buffy 's `` The Yoko Factor '' where he squares off with Buffy 's new boyfriend Riley ( Marc Blucas ) . They finally decide to stay away from each other 's business and stick to phone calls at this point . In the season one finale , Angel is given some hope at redemption when the Shanshu prophecy reveals that a vampire with a soul may eventually become human after fulfilling his role in the upcoming apocalypse . </P>
<P> After his departure from Buffy , Angel appeared in his own spin - off series , titled Angel . Moving to Los Angeles , he starts a supernatural detective agency called Angel Investigations . He dedicates himself to `` helping the helpless , '' and becomes a Champion of The Powers That Be , who send him psychic visions through his employees Doyle ( Glenn Quinn ) , and later Cordelia ( Charisma Carpenter ) . In doing so , he frequently clashes with the powerful law firm Wolfram & Hart , who represent the evil of the world . During this season ( 1999 -- 2000 ) , Buffy and Angel appear in each other 's shows ( the Buffy episode `` Pangs '' and the Angel episode `` I Will Remember You '' ) , but are forced to accept that nothing has changed and they still ca n't or should n't be together . Later in the television season , Buffy crosses over into the episode `` Sanctuary '' where she attempts to kill rogue Slayer Faith ( Eliza Dushku ) to whom Angel shows compassion , and Angel appears in Buffy 's `` The Yoko Factor '' where he squares off with Buffy 's new boyfriend Riley ( Marc Blucas ) . They finally decide to stay away from each other 's business and stick to phone calls at this point . In the season one finale , Angel is given some hope at redemption when the Shanshu prophecy reveals that a vampire with a soul may eventually become human after fulfilling his role in the upcoming apocalypse . </P>
when did angel leave buffy the vampire slayer
when did angel leave buffy the vampire slayer
1999
1999