Rajkumar Vajra: Son of Suthanu and Bhanu, the only descendant of Yudhishtira and Draupadi

 Rajkumari Sanyogita : The princess of one of the rival kingdom of Dwarka. (Fictional)

Rajkumari Devasenaa: Daughter of Charumati and Bali, Princess of Dwarka.

Yuvrani Suthanu: Daughter of Samrat Yudhishtir and Rani Devika, wife of Bhanu and Yuvrani of Dwarka.

Yuvraj Bhanu : Son of Krishna and Satyabhama. Yuvraj of Dwarka.

Parikshit: Son of Abhimanyu and Uttara, king of Hastinapur 

Madravati : Daughter of Uttar, Queen of Hastinapur

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Yudhishtir: The eldest Pandava, Emperor of Aryavart.

Draupadi: The fire born Queen, wife of the Pandavas.

Devika: Wife of Yudhishtir, Princess of Shivi.

Bheem: The second Pandava.

Hidimbaa and Valandhara: Wives of Bheem.

Arjun: The third Pandava.

Subhadra, Chitrangada, Uloopi: Wives of Arjun.

Nakul: The fourth Pandava.

Karenumati: Wife of Nakul.

Sahdev: The fifth Pandava.

Vijaya: Wife of Sahdev.

Prativindhya - Son of Yudhishtira and Draupadi

Sutasoma - Son of Bheem and Draupadi

Shatanika - Son of Nakul and Draupadi

Shrutasena - Son of Sahdev and Draupadi

Shrutakarma - Son of Arjun and Draupadi

Yaudheya - Son of Devika and Yudhishtira

Savarga - Son of Valandhara and Bheem.

Abhimanyu - Son of Subhadra and Arjun

Iravan - Son of Arjun and Uloopi.

Babhruvahana - Son of Arjun and Chitrangada.

Uttarā- Wife of Abhimanyu, daughter of Virata and Sudeshna, mother of Parikshit.

Niramitra - Son of Karenumati and Nakul

Suhotra - Son of Vijayā and Sahadeva.

Shree Krishna - Ah Kanha! This whole book won't be enough to give you a introduction! :(

Ashtamahishis:

•Rukmini: Daughter of Bhishmaka, the king of Vidarbha, first wife of Krishna

•Satyabhama: An incarnation of Mother earth & Daughter of Satrajit.

•Jambavati -Daughter of Jambavan

•Kalindi -Daughter of God Surya and Saranyu and the deity of river Yamuna

•Mitravinda -Daughter of Jayasena, Rajadhidevi

•Nagnajiti -Daughter of king Nagnajita of Kosala

•Bhadra -Daughter of Dhrishtaketu & Shrutakirti

•Lakshmana -Daughter of Brihatsena the King of Madra

Charumati - Daughter of Shree Krishna and Rukmini

Bali - Son of Kritavarma, husband of Charumati. 

No questions for why Suthanu and Bhanu's cast is so young. Please, it will lead to spoilers -_-)