Tunneler is one of Andre Toulon's puppets that he had created during the second World War in Berlin, Germany. Tunneler's soul was of a German man that was a friend of Toulon's who disagreed with Adolf Hitler's movement and was forced to work in the Nazi salt mines, but he refused and was killed.
Tunneler's main weapon and namesake is a cone-shaped power drill replacing his scalp; he usually kills his victims by charging them head-on with his drill running. Tunneler is more of a follower than a leader, rarely acting first.
Tunneler was supposedly killed in Puppet Master II by Lance. In the scene, he was thrown at the wall, before being smashed with a lamp. He was later dissected after his killing. Despite these occurrences, he returns in later films.
Tunneler's personality is that of a cold-blooded killer. He's intelligent and capable of carrying out complex orders.
- He has the ability to blink as seen in the original film.
- The action figure of Tunneler has a machine gun and a pickax, but he never uses them in the movies.
- It took Rick Myers and Pinhead longer to wake Tunneler up in Puppet Master 4, this could be because of his injuries in Puppet Master II.
- According to a trading card released by Fullmoon features, Tunneler's soul is Joseph Sebastian, a soldier who was forced to work in the Nazis' salt mines until he died. (which is never revealed in the movies).
- Although his uniform looks dark blue in many of the movies, the original prop actually had green uniform.
- Tunneler's original medal was circle shaped, but in the 2nd film onward it was a star.
- In Puppet Master 6: Curse of the Puppet Master, Tunneler didn't wear his belt but Blade wore it instead.
- It is not known what artist Dennis Gordon based Tunneler's design on, a Fangoia article claimed that he was based on Benito Mussolini.
- Black tape was placed onto his eyes on some scenes to give him more expression.
- Puppet Master
- Puppet Master II
- Puppet Master III: Toulon's Revenge
- Puppet Master 4
- Puppet Master 5: The Final Chapter
- Puppet Master 6: Curse of the Puppet Master
- Puppet Master 7: Retro Puppet Master
- Puppet Master 8: The Legacy
- Puppet Master 9: Axis of Evil
- Puppet Master X: Axis Rising
- Puppet Master: Axis Termination
- Eternity Comics
- Action Lab Comics
- Killjoy 3 (Appears on a television screen)