Roots of The Grouch

Shingo Annen , better known by his stage name Shing02, is a Japanese-American rapper, record producer, activist and investor. According to Patrick Neate, his music "has addressed important issues from Japanese ethnicity to sexual exploitation to the education system."

Zion I was an American hip hop project founded by MC and producer Baba Zumbi in Oakland, California. K-Genius and Amp Live were also project members.

Amp Live is an American alternative hip hop producer and disc jockey. He was one half of the duo Zion I, but left the group in 2015 amicably. He has remixed works by Radiohead, Tokyo Police Club and Jamie Lidell.

Aaron Pointer, better known by his stage name Abstract Rude, is an American rapper. Pointer's career began at Los Angeles' historical Good Life Cafe, a renowned open mic venue. He would practice his rapping every Thursday night at Good Life. He was a co-founder of the Project Blowed crew that emerged from the Good Life scene. He is the rapper of Abstract Tribe Unique, alongside dancers Zulu Butterfly and Irie Lion King, turntablist DJ Drez and producer Fat Jack. He was also a member of Haiku d'Etat with Myka 9 and Aceyalone, The A-Team with Aceyalone, and Code Name: Scorpion with Moka Only and Prevail. In 2009, he released the album Rejuvenation on Rhymesayers Entertainment. It was entirely produced by Vitamin D.

Simon Rex Cutright, is an American actor and rapper. Rising to fame as an MTV VJ, Rex later became an actor known for What I Like About You, starring in three films of the Scary Movie franchise, and National Lampoon's Pledge This! (2006). He later developed a rap persona, Dirt Nasty, and had several solo albums and co-founded the hip-hop group Three Loco. In 2021, he received critical acclaim for his lead role in Sean Baker's drama film Red Rocket, winning the Independent Spirit Award for Best Male Lead.