Feel free to name as many players and/or instruments as you wish, here's mine

Guitar
Jimi Hendrix
Carlos Santana
jeff Beck
Frank Zappa
Freddie Stone
Sly Stone
Prince
Curtis Mayfield
Buckethead
Chuck Berry
Dick Dale
John Pizzarelli
Django Reinhardt
George Harrison
Eric Clapton
Keith Richards

Bass
Bootsy Collins
Larry Graham
Charles Mingus
Prince
Jaco Pastorius
Nathan Watts
Stevie Wonder (even though most of his werre on keyboards)
Levi Seacer Jr.
Sly Stone
James Jamerson
Paul McCartney

Drums
Elvin Jones
Max Roach
Mitch Mitchell
Stevie Wonder
Duke Ellington's drummer (I forget his name)

Saxophone
Charlie Parker
John Coltrane
Maceo Parker
Canonball Adderly
Sonny Rollins
Johnny Hodges

Trumpet
Louis Armstrong
Dizzie Gillespie
Roy Elridge
Clark Terry
Clifford Brown
Miles Davis
Wynton Marselis
Nicholas Payton

Harmonica
Stevie Wonder
Sly Stone
Bob Dylan

Keyboards/Piano
Bernie Worrell
Herbie Hancock
Ray Charles
Art Tatum
Oscar Peterson
Duke Ellington
Count Basie
Stevie Wonder
Thelonious Monk

Composer
Duke Ellington/Billy Strayhorn
Thelonious Monk
Charles Mingus
John Coltrane
Sly Stone
Prince
Stevie Wonder
Lennon/McCartney
Gershwin
Mozart
Beethoven
Frank Zappa
Jimi Hendrix
James Brown
Terence Trent D'arby

Lyricist
Bob Dylan
Lennon/McCartney
Frank Zappa
Prince
George Clinton
Stevie Wonder (even though lyricism is probably his biggest weakness at times)
Chuck D
Ludacris (he's got quite the flow you have to admit)
Gift of Gab
KRS-One
Q-tip
Matt Stone/Trey Parker
Jimi Hendrix
Joni Mitchell
James Brown
Sly Stone
Terence Trent D'arby
Andre 3000

Producer
George Martin
George Clinton
Stevie Wonder
Sly Stone
Prince
James Brown
Big Boi/Andre 3000
The Bomb Squad

Oh yeah

Voice
Ray Charles
David Ruffin
Stevie Wonder
Michael Jackson
Prince
Terence Trent D'arby
Frank Sinatra
Bobby Darin
Louis Armstrong
Ella Fitzgerald
Paul McCartney
John Lennon
Curtis Mayfield
Patti Labelle
Todd Rundgren (add him to guitar, songwriter, producer list too)
Marvin Gaye
Henry Rollins (just cuz he scream with fury like no one else)
James Brown
Sly Stone
Larry Graham
Rosie Stone
Freddie Stone
David Bowie (add to songwriter, producer list)