A name that Yanks might see as overly British, but combined with the right surname, it does have a measure of Sherlock Holmesian dash via NigelBruce, who played the original Dr. Watson to Basil Rathbone's SherlockHolmes.
Nigel Thornberry, dad on animated series "The Wild Thornberrys"
Nigel Bottom, character in musical "Something Rotten"
Dr. Nigel Fenway, character on TV's "Threshold"
NigelBaker, boy in film "Cheaper by the Dozen"
Dr. Nigel Townsend, character on TV's "Crossing "Jordan"
Nigel, cockatoo in the animated movie "Rio"
Nigel, pelican in Pixar's "Finding Nemo"
Nigel Tufnel, lead guitarist of fictional band Spinal Tap
Nigel Uno (a.k.a. Numbah One), one of the main characters on Codename: Kids Next Door
Nigel Pinchley, character on an episode of TV's "Family Guy"