Kriegstaffebots

Kriegstaffebots are heavily armed German humanoid robots designed and manufactured by  Abigail Gluck to help her find the sixth piece of the  Planispheric Disk. With her death,  Professor Pericles began using the robots as his own bodyguards, ordering them to annihilate  Cassidy Williams and to find the sixth  piece of the  Planispheric Disk, which Gluck failed to find in her lifetime.

Physical Appearance
They are robots built to resemble World War II German humanoid soldiers.

Early history
They were designed by Abigail Gluck to search underwater for the disk pieces. After she died, Professor Pericles took over the factory for the robots and used them in his plans. (The Midnight Zone)

Season two
Professor Pericles used the Kriegstaffebots to target Cassidy Williams. (The Midnight Zone)

The Kriegstaffebots appeared in Scooby-Doo's nightmare where they attacked him and Nova. (Stand and Deliver)

Two Kriegstaffebots were used by Professor Pericles to grab Daphne Blake as a way for Professor Pericles to obtain the Planispheric Disk. [http://scoobydoo.wikia.com/wiki/Fred_Jones,_Jr. Fred Jones, Jr.] ended up surrendering it to Professor Pericles as he, Brad Chiles, Judy Reeves, and the two Kriegstaffebots got away.

[http://scoobydoo.wikia.com/wiki/Mystery_Inc. The gang] fought and destroyed many of the robots in an underground battle to free the citizens of Crystal Cove.

Several robots went with the old Mystery Incorporated though the elemental dimensions to find the Evil Entity. Under the orders of Pericles they executed their hostage Hot Dog Water after she temporarily turned the tables and made Pericles a hostage.

The remaining robots were destroyed in a final battle near the sarcophagus of the Evil Entity.