Medphyll is the Green Lantern Corps of the planet J586, a planet where plants are the dominant life forms. He has a somewhat tree like appearance, with brown, bark like skin, feet that slightly resemble roots and sprout like "mind stalks" instead of hair. He is known as one of the most skilled Green Lanterns in the Corps Medphyll was present at most of the major events of the Lantern Corps in Brave and the Bold. He was taken down by the sonic shockwave produced by the rampaging prisoner and was put under Despero's hypnotic spell. He was also seen battling the Reach during there invasion.