Hakuin Ekaku (1686-1769) was an extremely influential person in Japanese Zen Buddhism. He is credited with reviving the Rinzai school (one of the three sects of Japanese Zen Buddhism, the others being Soto and Obaku) after centuries of stagnation. Essentially, he returned the school to its roots of heavy focus on meditation and koans.
Bodhidharma was a Buddhist monk who lived during the 5th/6th century CE. He is traditionally credited as the transmitter of Ch'an (Sanskrit: Dhyāna, Japanese: Zen) to China, and regarded as its first Chinese patriarch. According to Chinese legend, he also began the physical training of the Shaolin monks that led to the creation of Shaolinquan.