Lobster Theodore is the secondary antagonist of the Danger Rangers episode "Water Works." He is a red lobster who is second-in-command to Dr./Commander Octagon. His sidekick is Joey Clams.
Among villainies is messing with a big water pipe, thus endangering a water park in Latin America, and later, he and Joey would make another pool dangerous and keep all life-saving devices away from the Danger Rangers (EG, stealing a lifebuoy from Squeaky so he has to use a branch) and not only get the Rangers blamed for the danger, but also Theodore and Joey's only witness, an inexperienced Fallbot, blamed for the incident.
Lobster Theodore was voiced by Mark Hamill (who also voiced Ranger Bert).