Professor E. Gadd (mar0109) Quick Facts
| BrickLink ID | mar0109 |
| Theme | Super Mario |
| Year Released | 2022 |
| Average Price (Used) | $4.64 |
| Average Price (New) | $6.61 |
| Price Range | $2.50 – $6.26 |
| Parts | 13 |
| Found In | 1 set |
About Professor E. Gadd
The LEGO Professor E. Gadd (mar0109) is a Super Mario minifigure worth $4.64 on average, released in 2022 and found in 1 set. It has 13 individual parts. The Super Mario theme average is $5.49, making this figure near average for its theme.
Professor E. Gadd (mar0109) is a common Super Mario minifigure, averaging $4.64 on BrickLink. At this price point it's usually not worth listing individually — bundle it with other Super Mario figures or include it in a themed minifig lot to move it. The value is in volume, not the single sale.
Seller notes
- New/sealed copies sell for $6.61 vs $4.64 used — a 43% premium. If you have this figure still sealed or in excellent condition with all accessories, price it closer to the new average.
- 13 parts including accessories. Double-check you have everything before listing — missing accessories (weapons, capes, helmets) will drop the price. Buyers on BrickLink expect complete figures.
- At this price point, list on BrickLink with other Super Mario figures to save on shipping and attract buyers building out their collection. Individual listings at low prices rarely justify the packaging time.
Parts in Professor E. Gadd (13)
Sets containing Professor E. Gadd (1)
Common questions about Professor E. Gadd
How much is LEGO mar0109 (Professor E. Gadd) worth in 2026?
The LEGO Professor E. Gadd (mar0109) is worth $4.64 used and $6.61 new/sealed on average, based on BrickLink sales data from the last 6 months. Prices range from $2.50 to $6.26 depending on condition. Completeness (all accessories included) and print condition are the biggest factors affecting price.
What sets include the Professor E. Gadd minifigure?
Professor E. Gadd appears in 1 set: Lab and Poltergust - Expansion Set (71397-1, ~$72.98). Since it was only in one set, it can't be sourced elsewhere — that scarcity is reflected in the price.
How do I identify Professor E. Gadd?
Look for the BrickLink ID mar0109 — it's the definitive identifier for this figure. Professor E. Gadd is made up of 13 parts including specialized accessories. The parts breakdown on this page shows each component with colors. If you have a loose figure and aren't sure what it is, the brick'em scanner can identify it from a photo in a few seconds.
What's the best way to sell Professor E. Gadd?
At this price point, the most efficient approach is to bundle it with other Super Mario minifigures in a lot rather than listing individually. On BrickLink, you can list it as part of a themed minifig bundle. On eBay or Mercari, a "LEGO Super Mario Minifigure Lot" listing with 5-10 figures will move faster and earn more than individual sales.