After 80 years of hard work, Mr. Tummell decided he was not going to leave his wealth and assets to be split up among charities.  Consumed with greed, Tummell contracted a scientist to build a device that would allow him to transmit all of his wealth to the Netherworld, so he could hold onto it in death.
An elaborate laser system and pyramid structure were utilized to create a non-corporeal rupture and, as a result, an ecto surge of unprecedented danger. Tummell anticipated ghosts be able to cross over to the physical plane and had a Ecto Shield and two Particle Throwers built into his wheelchair. However, the nature of the rupture made the ghosts' ecto molecular structure unstable and threatened the world.
The Ghostbusters infiltrated his high rise building and attempted to stop him. Peter Venkman fooled Tummell into overloading the equipment by trying to transmit his building. Egon Spengler then activated a Ghost Trap in order to set off a feedback loop to jam the transmission and pull back the unstable ghosts. Tummell and his building was pulled into the Netherworld but his wealth was displaced and returned to the physical plane.
- Mr. Tummell was voiced by Frank Welker, who voiced Ray Stantz, Slimer, and other characters.
- In Ghostbusters Issue #8, the character Mr. Visitor is visually based on Tummell.
- ↑ Peter Venkman (2009). The Real Ghostbusters- You Can't Take it With You (1987) (DVD ts. 13:09-13:10). Time Life Entertainment. Peter says: "This Tummell must be some rich guy."
- ↑ Ray Stantz (2009). The Real Ghostbusters- You Can't Take it With You (1987) (DVD ts. 13:11-13:13). Time Life Entertainment. Ray says: "Top of the Fortune 500."
- ↑ Mr. Tummell (2009).The Real Ghostbusters- "You Can't Take it With You" (1986) (DVD ts. 06:28-06:33). Time Life Entertainment. Tummell says: "I didn't work 80 years to become rich just to leave it all to charity."