Marty Grabstein Autographs
Marty Grabstein is an American actor, best known for voicing the titular character in the Cartoon Network animated series Courage the Cowardly Dog.
Grabstein's career has included work in films, television series, live sketch comedy, theater and commercials. Grabstein’s film credits include Bury The Evidence and Apartment #5C. His television credits include parts on three Law & Order series, Third Watch, and Conviction.
In addition to roles in several theater productions, Grabstein co-wrote and co-starred with Rick Mowat for their sketch comedy act Lab Rats, which they performed in comedy clubs throughout New York City. During the years they performed in that show they regularly arrived with new material.
Read more about Marty Grabstein on Wikipedia
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Traded items with a signature of Marty Grabstein
The most expensive item with a signature of Marty Grabstein (DC Comics CARTOON NETWORK CARTOON CARTOONS #4 SIGNED AND SKETCH MARTY GRABSTEIN!) was sold in September 2025 for $1,000.00 while the cheapest item (Marty Grabstein Signed Photo Autographed 8x10 Photo) found a new owner for $5.50 in February 2024. The month with the most items sold (2) was June 2021 with an average selling price of $54.98 for an autographed item of Marty Grabstein. Sold items reached their highest average selling price in January 2025 with $135.00 and the month that saw the lowest prices with $9.00 was May 2025. In average, an autographed item from Marty Grabstein is worth $72.50.
Most recently, these items with a signature of Marty Grabstein were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | Courage the Cowardly Dog- Marty Grabstein Signed 8x10 Photo COA | $55.58 |  |
| Courage the Cowardly Dog- Marty Grabstein Signed 8x10 Photo COA | $55.58 | |
 | Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $89.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $89.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $89.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $89.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $99.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $99.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $119.00 | |
| Marty Grabstein Courage The Cowardly Dog Signed 8x10 Photo Beckett BAS | $119.00 | |
| Marty Grabstein Signed 8x10 Photo Courage The Cowardly Dog Legend JSA Auth | $95.99 | |
| MARTY GRABSTEIN Signed COURAGE COWARDLY DOG 8x10 Photo Autograph JSA COA Cert | $59.98 | |
| MARTY GRABSTEIN Signed COURAGE COWARDLY DOG 8x10 Photo Autograph JSA COA Cert | $59.98 | |
| Marty Grabstein “Courage The Cowardly Dog” Signed Autograph REPRODUCTION 8.5x11 | $9.00 | |
| Marty Grabstein “Courage The Cowardly Dog” Signed Autograph REPRODUCTION 8.5x11 | $9.00 | |
