(This is all I could find for this one)
Leon is a former member of Under Dogg
Real name: Cavan Chen
That's all the info I have, other than the reason he left: On July 28, 2015, former Under Dogg Member Leon (Cavan Chen) posted on his Instagram account regarding his departure from the group. He cited racism, physical and verbal abuse from a certain Topp Dogg - G member and management as his reason for leaving the group.