 Originally, the character Tex was going to be named either Dex or  Merc. The name Dex or Dexter is a common name used for creator  Burnie Burns as he uses this name in a lot of his features. In the  end, the first name of the character Grif was revealed to be Dexter.  This information was revealed in an audio commentary by the cast, of  Episode 0 and 1, which was only released to the public when Grif  introduces himself as Dexter Grif in one of the PSAs