Re: How I Met Your Mother: Barney and... (Spoilers ahead...)
Guy Gardener wrote:
Is the half sister half black or was mommy eating even more flavours of ice cream while she was pregnant other than vanilla and chocolate?
Half-sister on his dad's side. Two season's ago, we were introduced to Barney's dad, who turned out to be John Lithgow. He has a family with a son and daughter who live in the burbs.
~Tighr™: Not helping the situation since 1983