First generation American, born of German immigrants. Everyone knows him as Mack. His first words were German. He lived in LaCinqua for most of his life. He also attended Ruize and graduated. He dated Julia for a long time before they drifted apart. He then began his up and down affair with Svetlana Kozlova. He took Jenn out on a date when Lana had broken up with him, but it didn't go anywhere. After awhile Lana and Mack got back together. When she moved to the city he agreed to move with her and the two found an apartment together.