More Cracked After Hours fanart.
Red: Them as children.
We know most about Soren's childhood. He has rich but neglectful parents who made sure he had all his material needs covered, but left him to be raised by servants who came and went, causing him to want to be perfect and crave everybody's love but also having a hard time getting emotionally involved in people. He has apparently never had a girlfriend, only booty calls, and everybody (including himself) seem surprised that he has come to care for Daniel.
Michael and Daniel are apparently childhood friends, with Michael being Daniel's only friend. There has been some subtle hints that Michael might come from a poor background, maybe even being an orphan who latched on to Daniel and his middle class family.
Nothing is known about Katie's childhood. All we know is that she likes classic art, texts, and music.
Blue: Their epilogues.
From this episode. Katie gets married, Michael starts a band, Daniel is in a car accident, and Soren...well, just watch it.
Purple: Inspired by a joke Soren Bowie (the real person) made.
Someone on Tumblr told him there's fanfiction with him over at Archive of Our Own (well, his character at least), and his response was perfect: "Good. My Mpreg children should be able to google their father and know what he was like"
If he actually read any of it he'd be terribly disappointed. All the After Hours fics are Soren/Daniel and very sweet and very very tame. If you want more freaky stuff you have to look up Agent's of Cracked fanfiction, but that's all Michael/Daniel.