THEORY OF RELATEEVEETY - PEERS OF ROEBUCK

The greatest contribution made by 'Grimm' to the Toobworld Dynamic is of course, the race of beings known as the Wesen, whose members can morph from humans to their base forms as different humanoid animal types.
 

From the "Grimm" Wiki:
Wesen (pronunciation: VAY-zin, Grimm: VES-sin; Germ. "a being", here "creature"; Spanish: espiritu bestia "spirit beast") is a collective term used to describe the creatures visible to the Grimms. They are the basis not only of the fairy tales that the Brothers Grimm have compiled, but also of the many legends and folklore from many cultures (i.e. Anubis, Aswang, Blutbad, Dämonfeuer, and Wendigo).

When a Wesen is woged, they are able to recognize a Grimm by looking into their eyes. According to Monroe, Wesen can see an "infinite darkness" in a Grimm's eyes that allows a Wesen to see their reflection, where they can see their true Wesen nature.

Unless we're sharing a POV with a Grimm, we don't get to see the Wesen in other TV shows.  And yet they're there.  Since 'Grimm' takes place in Portland, Oregon, I think it's a safe bet that several of the characters who showed up during Lt. Backstrom's murder investigations were Wesen.  In fact, I made the claim recently that there was a band of musicians who were all Wesen in an episode of 'Backstrom'.

I think we may have seen a Wesen in Toobworld a few years before 'Grimm' even hit the airwaves.  And that's thanks to the old Toobworld standby, identical cousins, we can make a theory of relateeveety that connects 'Grimm' to 'Lost'.

Meet Dr. Leslie Arzt....

Dr. Leslie Arzt was a middle section survivor of Oceanic Flight 815. He was a high school science teacher who managed to discover many new species of insects and arachnids, including the Medusa spider, but was killed on the Island while handling dynamite near the Black Rock on Day 44.

(From Lostpedia)

And this is Peter Orson.  I think he's got a little Arzt in him.....

Lieutenant Peter Orson is a former arson investigator (and a Bauerschwein) who first appeared in "The Three Bad Wolves".

After Orson's two brothers were killed, probably by Angelina, he targeted and killed Rolf and Hap, Angelina's brothers with home explosions designed to look like accidents. He successfully killed Rolf but failed to kill Hap. He later killed Hap with a pistol. Orson survived an attack by Angelina because Nick Burkhardt intervened. He was charged with the murders of Hap and Rolf.

After being in jail for over 3 years, he was temporarily released from jail to help aid Nick and Hank in finding and identifying an Excandesco arsonist named Damien Barso that he had been tracking for awhile before he was arrested. He also ended up re-encountering Monroe, bringing up the tensions between the two. They put their differences aside to help with the case.

(From the 'Grimm' wiki)

Because there is a definite end to Arzt's story, it makes it easier to make this claim of relateeveety.  Even if the shows are no longer on the air, I don't think it would be wise to stretch this familly tree to include other characters played by Daniel Roebuck on such shows as 'CSI', 'Glee', 'Monk', 'NCIS: Los Angeles', 'Franklin & Bash', and especially 'Matlock', 'Nash Bridges', and 'A Minute With Stan Hooper' because they were long-running characters with too much back-story.  

I do like the idea that Zookeeper Randy in an episode of 'Malcolm In The Middle' might have been a Bauerschwein and his uncredited, unnamed character in an episode of 'Boston Public' could have been one as well.  Being unnamed could count towards being either another Arzt or Orson, but I'd have to see that episode to be sure.  (Shows like 'Castle' and 'The West Wing' can be eliminated mostly because they take place in alternate TV dimensions.)

Arzt is gone now, but Orson may yet return.  His assistance in his second 'Grimm' appearance may lead to his early release from prison which could even lead to becoming a recurring character.

If Arzt really was a Bauerschwein, I wonder if there was the smell of pulled pork in the air when he blowed up real good....?

BCnU!