The Inspector is an immortal time traveler who traverses the farthest reaches of time and space, accompanied by his trusted Associates. Along the way, they solve mysteries, help the helpless, and do battle with various and dastardly foes.
| Actor | Role |
|---|---|
| TTravis RicheyThe Inspector | The Inspector |
 Mayim BialikThe B.O.O.T.H. (voice) | The B.O.O.T.H. (voice) |
 Sylvester McCoyUncle Roderick | Uncle Roderick |
 Robert PicardoBernard | Bernard |
 Chase MastersonAnnabelle Wagner | Annabelle Wagner |
 Carrie KeranenPiper Tate | Piper Tate |
 Nicholas BrendonChief Engineer Britman | Chief Engineer Britman |
 Rosearik Rikki SimonsT.A.R.V.I.S. (voice) | T.A.R.V.I.S. (voice) |
| EEric LoyaGood Boyish | Good Boyish |
| MMarcia BenderCrewmember | Crewmember |