Marios Karavasilis was born in Athens. His graduation from High Drama School “G.Theodosiadis ‘’ and his interest in music and dancing have led him to create theatrical costumes. 
 Additionally, his graduation from’’ VELOUDAKIS’’ Fashion School and his training in fashion house "CELEBRITY SKIN", resulted in his specialization in this sector. He worked as a styling assistant in photography and he has designed hats and headpieces displayed in many magazines such as HUFMAGAZINE, SLAVE, TANTALUM, USA/ELEGANT, RIVEN/ITALY , SWIFT magazine. Also he designed creations presented in AXDW especially for New Fashion Designers, SINISTER/Alexia Lap "CHROMOPHOBIA" show and LEON by Ilias Wia"CEREMONIAL” show. In 17th Athens Xclusive Designers Week-AXDW, creates him first  fashion collection –METHEXIS-for the season A/W 15-16 and is awarded  the “Best Trendsetter Designer''.
Eventually, Marios created the brand //MK// by MARIOS  in November 2014 to express his creativity as a fashion designer and to construct with his searching look new creations relevant to fashion, theater and Arts.