Mason Quinto (Marc Biagi) - Mason is the smart, driven, and arrogant senior lab assistant.Is her nice girl impression genuine or an act? Her knowledge of the Tesla coil makes her a prime suspect.

Ryan Kilpatrick (Katherine Grant-Suttie) - Ryan is a technical engineer that has built and modified several parts of the lab.

Could someone be looking for what he left behind? Like Tesla, Niko was clever yet secretive. But before he could release his findings to the world, he was found murdered.

Niko Jovic (Josh Crandall) - Rumors in the scientific community said that he had discovered the secret to wireless energy transfer.

She is the only playable character in the game, which means the player must solve the mystery from her perspective.

Nancy Drew ( Lani Minella) - Nancy is an 18-year-old amateur detective from the fictional town of River Heights in the United States.

Tensions rise as attempts on Nancy's life start, Nancy must get to the bottom of this case before the murderer catches up with her. With the case stuck at a dead end, the lab owner has asked Nancy Drew to go undercover to investigate this murder. Relating to wireless transmission of electricity, Niko Jovic's work could sell for millions on the market. Theoretical physicist Niko Jovic is found fatally electrocuted in a remote Colorado laboratory, Technology of Tomorrow Today, under suspicious circumstances. The game is loosely based on two books, The Crime Lab Case (2000) and In and Out of Love (1997).

There are two levels of gameplay, Amateur and Master sleuth modes, each offering a different difficulty level of puzzles and hints, however neither of these changes affect the actual plot of the game.

Players take on the first-person view of fictional amateur sleuth Nancy Drew and must solve the mystery through interrogation of suspects, solving puzzles and discovering clues. It has an ESRB rating of E10+ for moments of mild violence. The game is available for play on Microsoft Windows and Mac OS X platforms. Nancy Drew: The Deadly Device is the 27th installment in the Nancy Drew point-and-click adventure game series by Her Interactive.

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