Marshall Eriksen (Jason Segel) is Ted's college roommate and now best friend in How I Met Your Mother. Marshall is engaged to and eventually marries his college sweetheart, Lily.
Marshall is a lawyer who always wanted to work as an evironmental lawyer but in an effort to provide for his wife and future family now works with Barney at a big bank corporation.
Marshall was previously Ted's roommate for the first few seasons but now lives with Lily in their own condo they purchased.
So, funny thing about Willem Dafoe. His name sounds like it's being spoken by a frog, then a parrot. Willem. DA-FOE! Willem. DA-FOE!Marshall
Victoria: I will tell you my most humiliating story.
Marshall: Yeah, Victoria! Way to step up.
Victoria: OK, it involves a game of Truth or Dare, a squeeze bottle of marshmallow ice cream topping, and the hot tub at my grandparent's retirement community.
Future Ted: ... Kids, I tell you a lot of inappropriate stories, but there's no way I'm telling you this one. Don't worry, it wasn't that great...
Marshall: That is the greatest story ever!