Usui Takumi: Kaichou Wa Maid Sama
Hitachiin Twins: Ouran High School Host Club
Gakupo: not an anime but still hot xD Nico Nico Chourus
Undertaker and Sebastian Michaelis: Kuroshitsuji
Most of the male cast of Hetalia xD only the fan photos though the anime isnt really drawn well?
Lucky Dog Blast 1 Cast. manga)
Pictures shall be up tomorrow. :p