The search for America's Next Greatest Inventor continues in the first of four semi-final rounds. Ed Evangelista, one of the four judges, mentors three of the semi-finalists as they each use their $50,000 prize money to develop their products.
| Name | Type | Role | |
|---|---|---|---|
| Erik Thompson | Guest Star | ||
| Sheryl McDonald | Guest Star | ||
| Mark Martinez | Guest Star |