A highly prolific author from the earliest days of the LNH, Jef Kolodziej (AKA Jef the KaTe Fan) created Halls Jordan and Cliche Dude, as well as a ton of non-writer characters; notably, Table, Plot-Error Man and the original Time Crapper. He wrote much of the Cosmic Plot Device Caper and was the first person to take a stab at editing it into something vaguely resembling a coherent form. He was also one of the writers of the Electrocutioner's Song.
In 2014, he popped up on the LNH Facebook group and declared his characters usable by anyone. What a guy!