Atri: Atri Muni was a great brāhmaṇa sage and was one of the mental sons of Brahmājī. Brahmājī is so powerful that simply by thinking of a son he can have it. These sons are known as mānasa-putras. Out of seven mānasa-putras of Brahmājī and out of the seven great brāhmaṇa sages, Atri was one. In his family the great Pracetās were also born. Atri Muni had two kṣatriya sons who became kings. King Arthama is one of them. He is counted as one of the twenty-one prajāpatis. His wife's name was Anasūyā, and he helped Mahārāja Parīkṣit in his great sacrifices.
Kauśika: One of the permanent ṛṣi members in the royal assembly of Mahārāja Yudhiṣṭhira. He sometimes met Lord Kṛṣṇa. There are several other sages of the same name.
Sudarśana: This wheel which is accepted by the Personality of Godhead (Viṣṇu or Kṛṣṇa) as His personal weapon is the most powerful weapon, greater than the brahmāstras or similar other disastrous weapons. In some of the Vedic literatures it is said that Agnideva, the fire-god, presented this weapon to Lord Śrī Kṛṣṇa, but factually this weapon is eternally carried by the Lord. Agnideva presented this weapon to Kṛṣṇa in the same way that Rukmiṇī was given by Mahārāja Rukma to the Lord. The Lord accepts such presentations from His devotees, even though such presentations are eternally His property. There is an elaborate description of this weapon in the Adi-parva of the Mahābhārata. Lord Śrī Kṛṣṇa used this weapon to kill Śiśupāla, a rival of the Lord. He also killed Śālva by this weapon, and sometimes He wanted His friend Arjuna to use it to kill his enemies (Mahābhārata, Virāṭa-parva 56.3).