Ma Dai

Ma Dai is a Shu general and Ma Chao's cousin. He helped Ma Chao fight off Cao Cao at Tong Gate. After the Battle of Cheng Du he joins Shu along with his cousin. In the year 234, Ma Dai thought that Wei Yan was a traitor to Shu and thought that he would be killed for betraying Shu and was given his ranks.

Dynasty Warriors
Ma Dai is considered to be Ma Chao's loyal and faithful cousin throughout the Dynasty Warrors series. It was well known that his goal is to help his cousin in need. First appearing with Ma Chao in Tong Gate against Cao Cao, and then joined Shu upon his cousin's behest at Cheng Du, after Ma Chao and Liu Bei share a common goal. In the year 234, he knew that Wei Yan would be a traitor to Shu and was given his ranks by Liu Chan.

Kessen
In Kessen II, he may join Shu upon his cousin's behest when they face Cai Wengi. Alternatively, he can be lost in a desert mirage created by Zhuge Liang and continue to fight with her when he escapes.

Quotes

 * "I think your words unwise. Why should we join anyone?"
 * Ma Dai watching a betraying Wei Yan