orodha of nicknames used on Glee (Source: Glee Wiki, some from memory). A few have been left out so if wewe can think of any just post in comments)
__________
RACHEL
Rach, A-Rach, Babe, (Finn)
Miss Bossy Pants, Eva Peron (Mercedes)
RuPaul, Man Hands, Treasure Trail, Stubbles, That Thing, Sweetie (Quinn)
Yentl (Dakota, Santana)
Boy Hips (Lauren)
Benedict Arnold (Kurt)
Dwarf, Midget, Hobbit (Santana)
Barbra Streisand (Suzy Pepper)
Lady, Michele (Sue)
Baby, My Hot Little Jewish American Princess (Puck)
The Jew (YouTube user)

FINN
Finnocence (Santana)
Frankenteen (Santana, Dakota Stanley, Sue)
Sugar ray (Sue)
T-Rex...

All of these are in my own opinion. The makala is not about the actual quality of the songs, but zaidi of their use in the show. A short note is included after the title to note the main issue(s). "Done intentionally" means that the faults were acknowledged in the show.
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1.    Cell Block Tango - Poor song choice and offensive; done intentionally. The girls just found out that someone is in an abusive relationship. This was probably one of the worst songs they could have chosen to sing. As alisema in the show, it was kwa a bunch of violent, crazy women who killed their significant...

I found the Glee cast addresses (almost all of them) is just so u can send 'em letters...!



Dianna Agron:

Dianna Agron

c/o The Gersh Agency

6th Floor

9465 Wilshire Blvd.

Beverly Hills, CA 90212-2612

USA




Chris Colfer:

Chris Colfer

c/o Coast To Coast Talent Group

3350 Barham Blvd.

Los Angeles, CA 90068

USA




Jessalyn Gilsig:

Jessalyn Gilsig

c/o Framework Entertainment

9057 Nemo Street

Suite C

West Hollywood, CA 90069

USA




Jane Lynch:

Jane Lynch

c/o Domain

9229 Sunset Blvd.

Suite 415

Los Angeles, CA 90069

USA




Jayma Mays:

Jayma Mays

c/o Framework Entertainment

9057 Nemo Street

Suite C

West Hollywood, CA 90069

USA




Cory Monteith:

Cory...