From Muppet Wiki

Robots have often been featured in various Muppet productions over the years, as characters or as loudly whirring props. Robots, mechanical devices which can move and operate on their own, have a similar mystique to that of the puppet. In the Muppet universe, however, like other appliances, robots are generally distinguished by their ineptness and tendency to fall apart or explode. Many of Dr. Bunsen Honeydew's inventions, whether referred to as such or not, could be considered robots.

Muppet Robots

• SKF Robot Smokestack
• Otto the Automatic Entertainer
• M.A.M.M.A.
• Robot Kermit
• Vendaface
• Vendawish
• Steel Rabbit
• The Automatic Wastebasket
• Robot Abraham Lincoln
• Robot Dancers
• A robot comes out of Fozzie's magician's hat in episode 421 of The Muppet Show
• Tin Thing (a cyborg)
• Digit
• Talking Machine
• Robot Politician (played by Peter Ustinov)
• Fully Operational Automated Tony Bennett
• The AL-1995 Plus Tax
• An unnamed robot seen on The Mike Douglas Show

Sesame Street Robots

• Sam the Robot
• Charles the Robot
• The Six Dollar Man
• Zé Das Latas
• Sam the Super Automated Ghost of Christmas Future

Other Robots

• Bleep
• Marvin the Paranoid Android
• The Motorettes
• Rocket Sprocket
• Trans-Go JoBot
• Creature Shop puppeteers performed the Robot in Lost in Space