Voiced by Lauren Tom, is the Japanese-American crime scene investigator on the Safety Patrol who has a keen interest in forensics. Although she appears in almost every episode, she is more of a background character.
Karen is mostly a background character so never a lot is known about her history other than the fact that she has a sharp interest in forensic science and she is Japanese-American. Karen has appeared in most episode and can generally depict the nature of a scene by the aftermath and the components of various crimes with her trusty powder, magnifying glass and microscope.
In one episode it is revealed that she can be bribed with a certain candy bar for lessons. Ingrid did this in A Wurm in Our Midst to get Tehama to teach her basic fingerprint detection with powder and brushes.
Episode Appearances:
- "To Mar a Stall"
- "Test of the Tested"
- "A Wurm in Our Midst"
- "Red Robins Don't Fly"
- "Nappers Never Sleep"
- "Ingrid Third, Public Enemy #1"
- "Next Stop, Armageddon"
- "Masterstroke of Malevolence"
- "Two Wheels, Full Throttle, No Brakes"
- "Of Slain Kings on Checkered Fields"
- "A Forgotten Yesterday"
- "The Shreds Fell Like Snowflakes"
- "Foes Don't Forgive"
- "The Unseen Reflection"
- "Code Name: Electric Haircut"
- "Play On, Maestro! Play On!"