Inspector Detector

Inspector Detector is a character who appeared in the original series, who was voiced by Jack Curtis.

In the 2008 Speed Racer film he was played by Benno Fürmann.

Character traits
Inspector Detector is always doing whatever he needs to, to bring about justice.

Differences
In the anime, Inspector Detector was a senior law enforcement officer with the local police.

In the movie, his role was investigating corporate crimes for the CIB, and he was a "handler" of sorts for Racer X.

Relationships
Inspector Detector is a good friend of the Racer family, especially Speed.

Behind the scenes
A similar character appears in the 1969 Tatsunoko series Kurenai Sanshiro (released in certain territories as Judo Boy).