Who tells Brutus ''thou shalt see me at philippi ''?

The phrase "thou shalt see me at Philippi" is spoken by the ghost of Julius Caesar in William Shakespeare's play "Julius Caesar." The ghost appears to Brutus in Act 4, Scene 3, foreshadowing the impending conflict at the Battle of Philippi. This encounter serves to emphasize Brutus's guilt and the consequences of his actions in assassinating Caesar.