Randolpho Francisco Castillo (December 18, 1950 – March 26, 2002) was best known as Ozzy Osbourne's drummer during the mid 1980s to the early 1990s, and later as drummer for Mötley Crüe, from 1999-2002.

Randy Castillo was born to a Spanish/French/Native American mother, Margaret, and Native American/Hispanic father Frank (Kiko). He was one of five children, and his sisters, Frances, Marilyn, Phyllis and Christine, all play music. His first band experience was at West Mesa High School, playing in the jazz band, orchestra and marching band. He wrote the high school cadence that is still being used to this day. He played trumpet for a short time then realized his passion was the drums. He decided he wanted a drum kit instead, especially after seeing The Beatles play on the Ed Sullivan Show in early February 1964. However, his father refused to buy him one, thinking he would only lose interest, as he had already done with the trumpet.

When he was 18, Randy played in a band called The Tabbs, who wore mustard coloured Nehru jackets on stage. On 18 June 1970, exactly three months before Jimi Hendrix died, he snuck into one of Hendrix's concerts and hid under the stage to get a closer look. After leaving The Tabbs, he then played with The Mudd and began experimenting heavily with drugs, including mescaline, peyote and heroin. The band's lead singer, Tommy G, died of kidney failure, which Randy blamed on Tommy's addiction to heroin. This caused him to shy away from using the drug again.

John Michael "Ozzy" Osbourne (born 3 December 1948) is an English heavy metal vocalist and songwriter, whose musical career has spanned over 40 years. Osbourne rose to prominence as lead singer of the pioneering English band Black Sabbath, whose dark and hard sound helped spawn the heavy metal genre. Due to Sabbath's dark style, Osbourne became known as the "Prince of Darkness". Osbourne is also known as the "Godfather of Heavy Metal".

In the early 2000s, Osbourne's career expanded when he became a star in his own reality show The Osbournes, alongside wife/manager Sharon and two of their three children, Kelly and Jack. A documentary about his life and career, God Bless Ozzy Osbourne, premiered in April 2011 at the Tribeca Film Festival and was released on DVD in November 2011. Osbourne has achieved multi-platinum status as a solo artist and with Black Sabbath and has sold over 100 million albums worldwide.

John Michael "Ozzy" Osbourne was born in Aston, Birmingham, England, on 3 December 1948. His father Jack worked shifts as a toolmaker at GEC. His mother Lillian worked for the car components firm Lucas. John was the fourth of six children. Ozzy had two brothers (Paul and Tony) and three sisters (Jean, Iris and Gillian); they lived in a small two bedroom home at 14 Lodge Road in Aston. The nickname "Ozzy" was first used when he was in primary school. Although called "John" by his first wife Thelma, Osbourne states that it has been a long time since he's recognised himself when called by his formal name.

Jay Schellen (born 20 May 1960, Albuquerque, New Mexico) is a U.S. drummer who is best known as a member of the hard-rock band Hurricane. Schellen has also worked and currently working with a number of other heavy rock and progressive rock bands, including with AsiaWorld Trade, CIRCA:, Unruly Child and several members of Yes.

in 1979 as a teen Jay was introduced to the big Stage touring with R&B Legend Al Wilson ("Show and Tell") supporting The Ohio Players. After moving to Los Angeles in 1981 Jay broke into the LA session scene and played local stages with former Yes guitarist Peter Banks' band and National arenas with Danny Johnson and The Bandits supporting ZZ Top. In 1982, Schellen was invited to join English pop band Badfinger joining Tommy Evans, Joey Molland, Glen Sherba and Yes keyboardist Tony Kaye.

In 1984, Schellen joined Stone Fury, working with singer Lenny Wolf and guitarist Bruce Gowdy. From 1985 to 1991, he joined the melodic rock group Hurricane. Hurricane went on to record three records, Take What You Want, Over the Edge and Slave to the Thrill, 3 world wide tours and posted two top ten MTV videos. In 1993, Schellen joined Gowdy in a new melodic rock project, Unruly Child, releasing a self-titled CD. Schellen again worked with Gowdy in 1995, joining World Trade for their second album Euphoria, alongside Billy Sherwood (later in Yes). Schellen and Sherwood were the only members of World Trade for appearances on two tribute albums released on the Magna Carta record label in 1995.

Raymond A. "Ray" Gillen (May 12, 1959 – December 1, 1993) was an American rock singer, best known for his work with Badlands, in addition to his stint with Black Sabbath in the mid-1980s and recording most of the vocals on Phenomena's classic Dreamrunner album.

Gillen was born on May 12, 1959 in New York, but was raised in Cliffside Park, New Jersey. He was an only child and started singing while in high school. He played the New Jersey club circuit with various bands, most notably Vendetta and Harlette. In 1985, he joined Bobby Rondinelli's band, Rondinelli.

In 1986, Black Sabbath started touring for the Seventh Star album when after only a few shows, singer Glenn Hughes got into a fist-fight and lost his voice due to the related sinus and throat injuries. Gillen was offered the job to replace Hughes, which meant leaving Rondinelli to accept the offer. After finishing the Seventh Star tour, Black Sabbath recorded their next album The Eternal Idol with Gillen. However, due to mix of financial burden, writing difficulty (Bob Daisley was recruited for writing as Gillen turned out to be not much of a composer), mismanagement and miscommunication that plagued the band, Gillen and Black Sabbath drummer Eric Singer quit before the album was ever released. Gillen was eventually replaced by Tony Martin, and the vocal track of The Eternal Idol was hurriedly rerecorded note-for-note with Martin before the album was finally released in 1987. However, demo versions of The Eternal Idol featuring Ray do exist on the bootleg circuit. Also, in an interview Tony Martin revealed that the sinister laugh heard on the track Nightmare is in fact Ray's voice. The album was re-released on November 1, 2010 in Europe in a 2-disc expanded set including a bonus disc with Gillen's recording.

Whitey Kirst is a canadian rock guitarist, singer and song-writer, primarly known for his long collaboration with Iggy Pop as lead guitarist from 1990 to 2003, and co-composer from 1996 to 2003.

Since 2007, he has formed his own band "The Web of Spider", a straight-ahead rock and roll power trio featuring notably (and chronologically) Phil "Philthy Animal" Taylor, Max Noce, Chris Wyse, Mike Starr (musician), Ian Grant, Mike Wall, Stefan Adika, Tommy Clufetos.