A born solider, much like his blood brother Konstantin, Marcus helps to defend the Clan in times of battle.  When both Marcus and Konstantin's anger is directed at an enemy, there is little chance the subject in question will live to see another sunset.  Skilled in both ancient and modern forms of warfare, Marcus can literally sneak up on a victim from virtually anywhere and leave them for dead within moments.  He is the one most likely to be called for recognizance, and his quick mind has served his Clan well in both the Clan wars as well as more recent battles with the Andrasta.

Known by his Clan as 'the Sandman'. Marcus tends to stalk his victims, trick them into inviting him within their homes, and then return to feed on them as they sleep.  In such a way, he may infect their dreams with his memory, often driving the victim mad before they die.  He can draw this pattern out for weeks, months, even years depending on his moods.  He particularly enjoys this technique in driving society women from their husbands, and young newlywed brides from their grooms.  A ladies' man to the end, Marcus keeps a 
record of the beauties he has killed, and often visits their graves on the anniversary of their final death.  Seldom, but not often, he creates ghouls out of ones that catch his fancy. 

Much like Konstantin, women are Marcus' greatest weakness.  He is lusty in his romances, and seldom without a conquest in mind, be they Kindred or Kine.