Sun Wukong, also known as the Monkey King, is a legendary hero. Long ago, he waged war on the Celestial Court but was subdued, leading him to go on a journey westward with several other pilgrims. He later chose MK to be his successor.

Some time after imprisoning the Demon Bull King, the Monkey King took a liking to a young man named MK and appointed him to be his successor. After introducing himself to MK at Flower Fruit Mountain, he encouraged MK to believe in himself and take the Golden Staff back.

Since then, the Monkey King began training MK and giving him advice. After the Six-Eared Macaque tricked MK and stole his powers, the Monkey King battled him.

During New Year's, the Spider Queen attacked with the help of the Lady Bone Demon, who revealed herself to Monkey King. Learning that Lady Bone Demon was freed from her tomb, he left Flower Fruit Mountain to look for a weapon that could help him defeat her. However, he was too late, as by the time he came back, the Bone Demon had already gained full power. Along with the Monkie Kids, Monkey King went on a journey to reunite the Samadhi Fire.

When the fire was unleashed, he went on to fight the Lady Bone Demon alone, he almost defeated her but was possessed, becoming her new champion. He broke out of her possession with the help of MK. After the Lady Bone Demon's defeat, he apologized to MK and continued training with him.

His voice rather a broad, charismatic American voice. More relaxed, and playful take. Sun Wukong serves as a cocky, mentor-like figure to MK, and his voice acting reflects a playful yet incredibly experienced and slightly weary nature, as he has already lived for centuries