Dex was an old friend of the Creatures before he became one.
Out of all the Creatures, he met Kootra and Sp00n first.
Dex has had the most appearances as a non-Creature in Creature Hub content, appearing in six different Creature Hub series, these series include Creatures Play, First Five, Creature Movie Trips, a Red Dead Redemption series, a Minecraft Parkour series, and two episodes of Creature Talk. This was all while he visited the guys at the office in June-early July of 2014.
This was all until he was announced as a member of the Creatures at RTX 2014.
He is the only Creature without a YouTube moniker, as he always goes by his name.
One joke is that he has a banana fetish. This is used as a running gag in various live action videos.
Dex left the Creatures in bad terms on April 20, 2016.