Ken MacMillan - Bongo 5 (custom finished)

bassist and founding member of the Florida hard rock band Nonpoint. Nonpoint landed a spot on Ozzfest after their 2000 release Statement. The band has since released 5 more albums including 2010’s Miracle, which landed them a spot on the 2011 Soundwave tour in Australia. Nonpoint’s unique sound can not really be put into a genre, and they often vary their style from record to record, although they always maintain a heavy attitude paired with introspective lyrics.
(samsontech.com)
David Darocha - Bongo 4, 5 and 6.

Yo yo whats poppin yall! My name is David Da Rocha. I play bass guitar in Born of Osiris.
(bandhappy)
Mark Holcomb - JP6 BFR (Koa), JPXI 7, Axis Super Sport.

I play guitar in Periphery / Haunted Shores.
(formspring)

(yeah, I know it’s a short biography;)
Dan Pugsley - Stingray 4H.

Dan is internationally renowned as the bass player with UK band and Kerrang favourites Skindred.[…]Dan has recorded radio sessions for Radio One, XFM, KROQ (New York) and KROQ (LA) and has appeared on numerous front covers, as well as interviews and reviews in: Kerrang, NME, Metal Hammer, Big Cheese, Rocksound, Q magazine, Revlover, Rolling Stone and Alternative Press. Dan happily mixes alternative rock, heavy metal, punk and reggae styles. 
Mateo Camargo - customized Al (white finish w/ matching headstock, no tone knob, rosewood fingerboard)

 Colombian-born songwriter, record producer, and was the guitarist of rock band Madina Lake from 2005 to 2012.[1] He currently plays guitar and synthesiser in the band Little Bitter Cubes.[…]Mateo was previously in a band called Reforma with Dan Torelli that relocated to Chicago. The two of them met Nathan and Matthew Leone from The Blank Theory, and quickly befriended them. Mateo played guitar for them shortly before The Blank Theory disbanded, and the four of them formed Madina Lake.
(wiki) 
Benji Madden - Silhouette Special, Al and his own signature model based on Silo Special (one pickup - DiMarzio humbucker, knuckle inlay at 12th fret, metallic green finish).

American guitarist and backup vocalist for the band Good Charlotte, which he co-founded with his identical twin brother, Joel Madden. […]Madden and Joel take part in a side project group called the Dead Executives. Madden was a co-writer and co-producer of some of the songs on Hilary Duff’s Most Wanted (2005) compilation album. He also co-wrote the theme song for Paris Hilton’s reality show “My New BFF.”[…]Madden is an avid collector of Living Dead Dolls. In an episode of MTV Cribs he showed off his vast collection. He is known for having many tattoos, including a tattoo of Ben Franklin, which covers his entire back.
(wiki) 
Matt Bissonette - Bongo 5

American bass player and the brother of drummer Gregg Bissonette. He attended the University of North Texas’s jazz music program. According to Guitar 9, an online musicianship magazine, he has played bass and other stringed instruments on at least 22 albums, with music styles ranging from jazz, jazz fusion, progressive metal and instrumental rock. Bissonette has played bass in numerous popular rock bands, alongside legends such as David Lee Roth (1987–92, recording the US platinum A Little Ain’t Enough album), Ringo Starr (2003–05), and currently, Elton John (2012–present) [and Joe Satriani :)]
(wiki)
Gretchen Menn - Silhouette and Silhouette Special

Apart from demolishing her mother’s violin with Pete Townshend-like vehemence at age three, Gretchen’s passion for all things guitar didn’t fully surface until her early teenage years. […]Playing with tireless passion and constantly seeking out new challenges, Gretchen’s projects have spanned the genres of jazz, funk, rock, progressive, and metal. In 2003, she donned a schoolboy uniform and joined AC/DShe as “Agnes Young.” […]In 2011 she wrote, produced, and recorded her first solo album, Hale Souls, which features bassist Stu Hamm, drummer John Mader, violinist Emily Palen, and guest artists Angeline Saris (bass on “Scrap Metal”), Jude Gold (second acoustic guitar on “Fast Crowd”), and Gretchen’s sister, Kirsten Menn (soprano on “Fading.”) (gretchenmenn.com) 
Chris Howorth - custom JP7 (no tone controle, Monster drink decal, EMG pickups)
I couldn’t find any biography that would say more than that he’s the guitarist and former member of In This Moment.
(IMHO putting EMGs into JP7 is WRONG)
John Cameron Fogerty - Axis, JP.

American musician, songwriter, and guitarist, best known for his time with the swamp rock/roots rock band Creedence Clearwater Revival (CCR) and as a solo recording artist.[1] Fogerty has a rare distinction of being named on Rolling Stone magazine’s list of 100 Greatest Guitarists at #40 and the list of 100 Greatest Singers at #72.
(wiki)
Juliet Simms - Al HH

“I LOVE my Music Man. The tone, feel and look all compliment what I do as a guitarist and songwriter. Plus being a girl it balances and plays so well with my smaller fingers”
Rob “Blasko” Nicholson - Stingray 4.

Rob is perhaps best known for his performances on Rob Zombie’s solo albums, and is currently part of Ozzy Osbourne’s band. […]Toured with Rob Zombie, where he began using the nickname “Blasko”. […]In 2003, Blasko replaced Robert Trujillo as Ozzy Osbourne’s bassist. (wiki)
Randall Darius “Randy” Jackson - Sterling, Stingray, Bongo, Big Al.

an American bassist, singer, record producer, entrepreneur and television personality. He is best known as a judge on American Idol and executive producer for MTV’s America’s Best Dance Crew. Jackson has won a Grammy Award as a producer.
Jackson has recorded, produced, or toured with many well-known artists and bands, ranging from Mariah Carey […] to ‘N Sync, Whitney Houston, (produced) Dionne Farris’ (critically acclaimed debut CD, Wild-Seed Wild-Flower), Céline Dion, Fergie (dating back to her days in Wild Orchid), Stryper,[5] and Madonna […].
(wiki)
Dave “Phoenix” Farrel - StingRay 4, Stingray 5.

David Michael Farrell (born on February 8 1977), more commonly known as Phoenix, is the bassist for the alternative rock band Linkin Park. […]
He is adept at playing the bass guitar, electric guitar, cello and violin. He has also been known to play an upright bass at some concerts. […]
Farrell has cited his influences as being his mother and his brother, Joe, as well as Weezer, The Beatles, the Deftones, The Roots, Bob Marley, Sarah McLachlan, Hughes & Wagner and Harrod & Funck.
(linkinpark.wikia)
Johnny Christ - StingRay 4, Sterling 4, 30th Anniversary Stingray.

Johnny Christ is the bassist for the metalcore/hard rock band Avenged Sevenfold. He is the third bassist for Avenged Sevenfold, following the departures of Dameon Ash and Justin Meacham. He dropped out of Marina High School before his senior year to tour with the band. He first recorded on their second CD Waking the Fallen. […]
Johnny’s Musicman basses are custom painted at the factory. 
(uberproaudio.com)