Martial Universe

• Yang Yang as Lin Dong (林动)
  • Protagonist. A descendant of the Lin clan. He is chosen by the Emblem stone to be the successor of the Emblem master, who sealed away the Yimo demons a century ago, and take up the duty of fighting against the re-emergence of the Yimo. He first liked Ling Qingzhu but later fell in love with Ying Huanhuan.
• Zhang Tian'ai as Ying Huanhuan (应欢欢)
  • Daughter of the leader of Dao Sect. Lin Dong's Lover. Her real identity is that of a reincarnated ice lord and she awakens her powers in order to protect Dao Zong and help Lin Dong in his quest for revenge. She risked her life and did everything for Lin Dong.
• Wang Likun[5] as Ling Qingzhu (绫清竹)
  • Princess of Nine Heaven's Tai Qing Palace. Through an unexpected turn of events, she and Lin Dong end up sleeping with each other and she tracks him down to get her revenge, but instead becomes moved by his determination and fell in love with Lin Dong.
• Wu Chun[6] as Lin Langtian (林琅天)
  • A martial arts prodigy who bears the burden of leading the entire Lin Clan to greater success. However, he loses his way along the journey and succumbed to the schemes of the villains.

• Ashton Chen[7] as Lin Yan / Xiao Yan (林炎/小炎)
  • A tiger demon who used to follow Lin Dong around until he eventually transformed into a human. He possess immense strength, courage and loyalty. He is later found to be the successor of the Prehistoric ancestral emblem.
• Liu Yan[8] as Mu Qianqian (穆芊芊) / Heavenly Seat King （天王殿）
  • Lin Langtian's senior sister. She is a seductress and a cunning, manipulative elder of the Yuan Sect she is eventually shown as a Heavenly Seat King - Yi Demon.
• Suo Xiaokun[9] as Lin Diao (林貂)
  • A martem demon from the heavenly monk tribe. He was trapped inside a stone amulet until eventually discovered by Lin Dong. He starts out completely indifferent towards Lin Dong but ends up becoming his sworn brother alongside Xiao Yan. Later in the series, he became the acknowledged successor of the Thunder ancestral emblem.
• Dong Qing[10] as Lin Qingtan (林青檀)
  • Lin Dong's foster younger sister. She harbors a dark and chilling power within her, which she eventually turns it into her cultivation. She is the successor of the Darkness ancestral Emblem.
• Yang Haoyu as Master Yan (岩大师)
  • Master of Yan Cheng Wizard Sect. Lin Dong's teacher.
• Li Xinliang as Teng Lei (腾儡)
  • Lord of the Wilderness, Prince of Magic Puppet Sect.
• Feng Junxi[11] as Mo Ling (莫凌)
  • Prince of Dayan Royal Dynasty. Eventually became Lin Dong's good friend as he follows Lin Dong at Dao Sect where he died in Lin Dong's arms on their escape from the demon swarm.
• Xiao Siqin Gaowa[12] as Xuan Su (萱素)
  • Supervisor of the Wanjin Chamber of Commerce auction house.
• Tse Kwan-ho as Lin Xiao (林啸)
  • Lin Dong's father. He sacrificed himself to shelve the Yimo.
• Wang Haitao[13] as Chen Feng (辰风)
  • From the Darkness tribe.
• Kuang Can as Lu Yun (陆云)
• Ning Xiaohua[14] as Sixth prince of Demon Tribe (魔族六王殿)
• Wu Yajun[15] as Mu Lingshan (慕灵珊)
  • Little princess of the Fox tribe. Rescued by Lin Dong.
• Qian Long as Jiang Hao (蒋浩)
  • Disciple of Dao Sect. Lin Dong's senior brother. Sacrificed himself to the Demon swarm to protect his Sect brothers.
• Zhao Dan[16] as Su Rou (苏柔)
  • A senior disciple of Nine Heaven's Tai Qing Palace. Ling Qingzhu's senior sister.
• Chen Yating as Mu Xinqing (慕心晴)
  • Elder princess of the Fox tribe.
• Ji Dongran[17] as Lei Li (雷厉)
• Zhou Yiwei as Zhou Tong (周通)
  • Lin Dong's senior. A genius who was the only disciple who mastered the Desolation formation from the Dao Sect before Lin Dong. He died after their encounter with the Third Seat King - Yi Demon.
• Sun Yulin as Shen Qing (沈清)
  • Palace Leader of the Nine Heaven's Tai Qing Palace.

On August 29, 2016, Yang Yang was announced as the male lead, Lin Dong.[26]

On October 10, 2016, the lead actress was announced to be Zhang Tianai, who would play the role of Ling Qingzhu.[27]

On November 14, 2016, the production team announced that lead actress Zhang Tianai would play Ying Huanhan instead. Actress Wang Likun was added to the production, taking over Zhang's previous role as Ling Qingzhu.[28] A controversy arose there were rumors stating that Zhang had snatched the role of Gina Jin's, who was initially cast to play the role of Ying Huanhuan. In response to this, director Zhang Li said that after reviewing the script, the production team decided that Zhang Tianai was more suitable to play Ying Huanhuan, hence explaining the change in roles.[29]