Your Secret Theme rounds for this week

Each group of 10 otherwise unrelated questions has a theme running through their answers. Can you answer the questions and figure out the theme? Beyond that, can you tell me why adults would dress themselves this way? Answers (except to the fashion faux pas) will be posted in a few days.

Ray's:

1) Aka, Baka, Babongo and Twa are African ethnic groups commonly referred to in English by a non-African catch-all word you know, what is that word?
2) What NHL franchise became the Carolina Hurricanes in 1997?
3) What California governor was recalled in a 2003 election?
4) What huge Linda Ronstadt hit (#3 on the pop charts) from 1977 was originally written and recorded by Roy Orbison in 1963?
5) Who was the only guest star on The Simpsons to receive a writing credit (likely due to his improv comedy style) for his episode?
6) What variety (not brand) of caviar is the most expensive?
7) What successful 1983 film featured both actors and characters named Glenn and Shephard, although neither played their namesake?
8) What's the smallest type of cell in the human body?
9) What 1993 film featured Patricia Arquette as Alabama Whitman?
10) In Greek mythology, what Trojan prince, son of Priam, initially opposed the Trojan War but later became one of its best-known warriors?

... and what theme links the 10 answers?

Frank's:

1) What TV cop show, which ran on NBC 1968-1975, focused on LAPD officers Pete Malloy and Jim Reed?
2) What's the bolwers' term for bowling a 0 in the first half of a frame and knocking down all 10 pins in the second half (note that this is not a strike)?
3) What beloved Christmas character was created in 1939 by Robert L. May as part of a promotion for Montgomery Ward?
4) What popular national brand of salad dressing is named after the Kansas City, MO restaurant in which it was first produced over 50 years ago?
5) What best-selling 1970 American Indian history book lent its title to a 2007 movie produced by HBO?
6) What villain was played by Arnold Schwarzenegger in 1997's Batman & Robin?
7) What Warner Bros. cartoon character is patterned after Orson Welles?
8) What Revlon perfume was advertised in the '70s and '80s with a jingle that began There's a fragrance that's here to stay...?
9) What 1976 hit (#2 on the pop charts for 3 weeks) for The Spinners had a lyric about a musician with a strange method of making music?
10) What British sit-com, which ran 1978-1983 on British TV and was in regular syndication on PBS in the US in the '80s, starred Wendy Craig and Geoffrey Rush?

... and what theme links the 10 answers?