Ulas Cihan Simsek goes by UCS.
Cihan Uzden goes by Chicco.
Cihan Arslan goes by Kutadgu.
Lee Go goes by Willy.
Midge :)
Emmett Till was not known to go by any specific nicknames.
David Gohman goes by Go-Go.
Will Blomquist goes by Will.
Will Blagrove goes by Will.
Will Englander goes by Will.
My Do goes by Phimy, and MyMy.
Will Young goes by Will.
Chuck Seifert does not appear to go by any commonly known nicknames.