Vo filme River of Grass hrajú Lisa Bowman (Cozy), Larry Fessenden (Lee Ray Harold), Dick Russell (Jimmy Ryder), Stan Kaplan (J.C.), Michael Buscemi (Doug), Lisa Robb (Young Cozy), Tom Laverack (Cozy's Lover in Tub), Bert Yaeger (Dead Husband), Mary Glenn (Woman with Hatchet), Carol Flakes (Lee's Grandmother), Frances Reichardt (Lee's Mom), George Moore (Detective Kirby), Mannie Mack (Mr. Humphery), Greg Schroeder (Bobby), Kyle Hawkins (Cozy's Kid), Heather Florio (Cozy's Kid), Joseph Florio (Cozy's Kid), Duncan Young (Bartender), Santo Fazio (Detective Ortiz), Monica Davidson (Mrs. Ortiz), Jerry Utter (Doug's Father (voice)), Susan A. Stover (Miami D.J. (voice)), Shelly Florio (Secretary in Flashback), Sheila Korsi (Depressed Woman in Bar), Lou Perdomo (Tattoo Artist), Barbara Bucci (Motel Manager), Steven Lezak (Motel Loiterer), Robert Perry (Record Store Owner), Jerry Reichardt (Cop at Grandmom's), Kerline Alce (Cop at Grandmom's), Ricco Jackson (Convenience Store Owner), Murray Von Murry (Robber), Carl Crowder (Loiterer), Barry Shore (Highway Patrolman), T. Colin Dodd (Corpse #1), Wayne Ferguson (Corpse #2), Roz Delisi (Jazz Bar Singer), Mitch Lewis (Guitar Player in Bar), Patrick Cooke (Jazz Bar Musician), Harry Epp (Jazz Bar Musician), Robert Greenbaum (Jazz Bar Musician), John Ulrich (Jazz Bar Musician), Will Connelly (Jazz Bar Musician), Matthew Sigal (Thief).