Jared "CooL" O'Brien (also known as Centaur1um and CptCool2) is a Master Mind and voiced Gordon Freeman in Freeman's -ish Mind 2 and Felix's Mind, and a snowman in the Christmas special of Declan's Mind. He has collaborated with the Master Minds on Out Of Our Minds, Mind the Gap, Meeting of the Minds and Opposites Attack.

outside of the Master Minds, Jared is a lead member of SourceRuns, a group dedicated to speedrunning in video games that run in the Source engine, such as Half-Life 2 and its episodes.