Blair Underwood portrays Russell Walker, a young and ambitious record producer at the center of the film's story.
Joseph Simmons plays a version of himself, one of the founding members of the iconic hip-hop group Run-D.M.C.
Darryl McDaniels, also known as DMC, appears as himself, another member of the influential hip-hop group Run-D.M.C.
Sheila E. appears as herself, showcasing her musical talents as a renowned percussionist and singer.
Kurtis Blow portrays himself in the film, bringing his pioneering presence in the early days of hip-hop to the screen.
LL Cool J, a prominent figure in hip-hop and rap music, appears as himself in Krush Groove.
Rick Rubin, a legendary music producer and co-founder of Def Jam Recordings, is portrayed in the film.
Damon Wimbley is one of the members of the popular hip-hop group The Fat Boys, known for their beatboxing and rapping.
Mark Morales, also known as Prince Markie Dee, is a member of The Fat Boys, contributing to the group's unique sound.
Darren Robinson, known as The Human Beat Box, is part of The Fat Boys trio, showcasing his beatboxing skills.
Chris Rock has an uncredited role as Person Standing Next to Club Phone During Fight in Krush Groove.
Coati Mundi makes an uncredited appearance as the Record Shop Owner in the film.
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