|Affiliations|| Max Tennyson (frequent customer)|
Ben Tennyson (frequent customer)
Rook Blonko (frequent customer)
|Voice Actor|| Richard Doyle (Ultimate Alien)|
Corey Burton (Omniverse)
|First Appearance||The Purge|
Ignacius Baumann is a local shop keeper in Bellwood.
In Ultimate Alien, Mr. Baumann wears a light blue shirt, a black t-shirt, and black pants with a white apron. He is partially bald and has gray hair on the side of his head.
In Omniverse, Mr. Baumann wears glasses, a dark pink bow-tie and a light pink-striped yellow shirt with a dark pink apron and brown pants. He also has grown a little black mustache. He also has a pot belly.
In Ultimate Alien, he was shown as being friendly and nice to Ben. During Omniverse however, he came to grow an irrational hatred of Ben for any damage to his property or car that was never intentional. He is shown to have a cold, unforgiving and impatient demeanor towards Ben. He is generally unreasonable, as shown in Special Delivery, when he scolds Ben for another accidental destruction of his car that was the result of an unprovoked alien attack. Despite that, he often helps Ben's team by hiding them in his store during the Incursean occupation.
Mr. Baumann was first seen in The Purge, when Ben and his team asked him if he knows anything about why aliens leave Earth. Mr. Baumann tells them that he has no idea, so Ben, Gwen, Kevin and Argit leave. They sneak up on him and it is then revealed that he has been hiding an alien family from the Forever Knights. He tells the gang that the Forever Knights have been attacking aliens on Earth.
OmniverseMr. Baumann returns in The More Things Change: Part 1, when Ben hears that aliens take pizzo from alien shops in Bellwood. He visits Mr. Baumann and tells him that he will protect the shop. Baumann refuses the offer saying that Ben ruins his shop everytime he is in it. Eventually, Ben manages to convince him to let him observe quietly. Ben turns into Cannonbolt and accidentally deals some damage. When the criminals arrive he paid them but thanks to Ben's intervention they planted a bomb to his store. Baumann hides while Bubble Helmet shoots lasers all over the place. He sits behind the food bar and repeatedly says that he knew it was going to happen. After a long fight, Rook and Ben defeat them and manage to explode the bomb somewhere else. From this point Mr. Baumann has a strong hatred against Ben.
In Malefactor, he appeared in Ben's dream as one of the many fans of him.
He made a cameo in The Frogs Of War: Part 1.
In Universe Vs. Tennyson, Mr. Baumann's truck was hijacked by Fistrick and Mr. Baumann was forced to drive around town with him. Even though Ben offered to help, Mr. Baumann said that only more harm will come from it. This was proven true as Mr. Baumann's truck was destroyed after being driven into the wall. Later, Mr. Baumann was summoned to the Galatic High Court where he was prosecuted by Starbeard. Mr. Baumann's thoughts were processed as he had history with Ben finding him to be a meance. When questioned by Chadzmuth about Ben being able to create another universe, Mr. Baumann said that Ben can only create destruction of his private property. Mr. Baumann was then teleported out of the court.
In Clyde Five, he was walking by a Mr. Smoothy along with Pakmar when he heard Ben yelling "Ben Tennyson doesn't go around wrecking stuff". He and Pakmar both stared at him, insisting that the statement is not true.
Ben 10: Ultimate Alien
- The Purge (first appearance)
Ben 10: Omniverse
- The More Things Change: Part 1 (first re-appearance)
- Malefactor (Ben's dream)
- Special Delivery
- The Frogs Of War: Part 1 (cameo)
- The Frogs Of War: Part 2
- Something Zombozo This Way Comes (cameo)
- The Vengers
- No Honor Among Bros (cameo)
- Universe Vs. Tennyson
- Clyde Five (cameo)
- The Ballad of Mr. Baumann
- Fight at the Museum
- Apparently he had more off-screen run-ins with Ben when he mentions that every time Ben shows up, the store always ends up being trashed during a fight, or how Ben has constantly destroyed his car since he was 5 years old in their first meeting.
- According to Derrick J. Wyatt:
- In No Watch Ben's timeline, Mr. Baumann has a grocery store for Human customers.