يمكن حفظ Seneca gave a very important role to the Constellations in his tragedies; He did not mention them to prove his knowledge of these signs and their forms, but rather dealt with the matter with great professionalism, as he put these signs in their place in his dramatic work for a goal he would like to show, or to clarify a relationship in the play Between these signs and his tragic hero, which makes a strong link between the presence of these signs and the tragic hero. Seneca mentioned Cancer, Gemini or Leo, these had a close relationship with Hercules and his works and his fear of confronting it in the sky, as well as in Libra and Aries or Virgo has a relationship with one of the play’ characters, while there are some other zodiac that have nothing to do with the characters of the play, such as the bull in Hercules furens, or Scorpio, Sagittarius, Capricorn, Aquarius and Pisces mentioned by Seneca in the scene of world’ end in Thyestes to complete the fall of the entire zodiac circle, Seneca cleverly linked some forms of animal signs with the heroes of his tragedies, as with Hercules. Seneca did not refer to the influence of the constellations on human life, but he did not separate between them and humans, while on the contrary, he tried to link them with the characters of his plays with great professionalism and clear intelligence.