Michelle Lenhardt (Beach Bikini Girl), Eric Newnham (Reporter #1), Jake Abel (Mike Love), Kirstin Masters (Beach Bunny), Troy Williams (Cadillac Customer), Erik Eidem (Doug), Diana-Maria Riva (Gloria), Tyson Ritter (Hipster #1), Jonathan Slavin (Phil Spector), Johnny Sneed (Hal Blaine), Kenny Wormald (Dennis Wilson), Tonja Kahlens (Brenda), Joanna Going (Audree Wilson), Max Schneider (Van Dyke Parks), Wayne Bastrup (Process Server), Teresa Cowles (Carol Kaye), James Crosby (Surfing Extra), Fred Cross (Cadillac Co-Worker), Brett Davern (Carl Wilson), Paige Diaz (Hipster Girlfriend), Gretchen Duerksen (Diane Rovell), Jeff Galfer (Hipster #2), Claudia Graf (Landy's Girlfriend), Larry Greenfield (Session Violinist), Benjamin Hardy (Cadillac Maintenance Man), Jessie Holland (Model), Jeff Holman (Brian Wilson Present), Mark Linett (Chuck Britz), Jeff Meacham (Tony Asher), Drew Morris (Hippie / Doper), Violet Paley (Marilyn's Friend (as Violet Leona Paley)), Morgan Phillips (Evan), Graham Rogers (Al Jardine), Shaun Rylee, Al Simmons Jr. (Friend of Beach Boys), Joanne Spracklen (Mike's Girlfriend), Carolyn Stotesbery (Sarah), Nikki Wright (Hippy / Doper)

Brian Wilson, Michael A. Lerner, Oren Moverman

Marko A. Costanzo, Eugene Gearty, Chris Jenkins, Nicholas Renbeck, Steven Visscher

John Wells, William Pohlad, Claire Rudnick Polstein

Alterian, Ascot Elite Entertainment Group, Battle Mountain Films, Cathay-Keris Films, Kadokawa, Moments Entertainment, The, Mongkol Major, River Road Entertainment, Roadside Attractions, StudioCanal