| Morgan Ågren | guest: 7c |
| Mike Altschul | 3a |
| Ralphe Armstrong | guest: 5b, 5c |
| Artis the Spoonman | guest: 7a |
| Dick Barber | guest: 1 |
| Gary Barone | 3b |
| Arthur Barrow | 6a, 6b, 6c |
| André Beauregard | guest: 1 |
| Captain Beefheart | 2c, 5a |
| Adrian Belew | 5d |
| Norma Jean Bell | 5b guest: 5b |
| John Belushi | guest: 5c |
| Max Bennett | 2b, 2c, 2d |
| Jeff Berlin | rehearsals: 6r |
| Bianca | 5c |
| Jimmy Carl Black | 1 guest: 2h, 5a, 6c |
| Roger Bobo | guest: 2e |
| Greg Bolognese | guest: 7c |
| Carol Bozzio | guest: 5d |
| Terry Bozzio | 5a, 5b, 5c, 5d |
| Mike Brecker | 5c |
| Randy Brecker | 5c |
| Don Brewer | guest: 5c |
| Napoleon Murphy Brock | 4b, 4c, 4d, 5a, 5b |
| Arthur Brown | guest: 1 |
| Denny Bruce | 1 |
| Gary Burton | guest: 1 |
| Eric Buxton | guest: 7c |
| Robert "Frog" Camarena | rehearsals: 5b guest: 4b |
| Paul Carman | 7c |
| Bruce Chapin | guest: 4b |
| Don Cherry | guest: 1 |
| Irma Coffee | guest: 4b |
| Vinnie Colaiuta | 6a, 6c rehearsals: 6b, 6r |
| Ray Collins | 1, 2e guest: 1 |
| Bob Cranshaw | guest: 5c |
| Ronnie Cuber | 5c |
| Warren Cuccurullo | 6a guest: 6a |
| Lew Del Gatto | 6a |
| Al DiMeola | guest: 7a |
| Burleigh Drummond | rehearsals: 4a |
| George Duke | 2f, 4a, 4b, 4c, 4d, 5a guest: 2h, 7b |
| Earle Dumler | 3a, 3b |
| Aynsley Dunbar | 2d, 2e, 2f, 2h guest: 7b |
| Tony Duran | 3a, 3b |
| Darryl Dybka | guest: 5b |
| Roy Estrada | 1, 5b guest: 5d |
| Glenn Ferris | 3a, 3b |
| Jim Fielder | 1 |
| Larry "Wild Man" Fischer | guest: 1 |
| Bruce Fowler | 3a, 3b, 4a, 4b, 4c, 5a, 7c guest: 4d, 7b |
| Tom Fowler | 4a, 4b, 4c, 4d, 5a |
| Walt Fowler | 4c, 7c |
| Tom Freeman | rehearsals: 7c |
| Bunk Gardner | 1 |
| Buzz Gardner | 1 |
| Art Garfunkel | guest: 1 |
| Lowell George | 1 |
| Jim Gordon | 3a, 3b |
| Ed Greene | 2b, 2c? |
| Don Grolnick | guest: 5c |
| Mario Guarneri | guest: 2e |
| Jim Guercio | 1 |
| Ruben Guevara | guest: 4b |
| Cheryl Hardwick | guest: 5c |
| Bob Harris #1 | 2h |
| Bob Harris #2 | 6c |
| Don "Sugarcane" Harris | 2c, 2d |
| Buddy Helm | rehearsals: 4a |
| Jimi Hendrix | guest: 1 |
| Ralph Humphrey | 4a, 4b, 4c |
| Sandy "Uncle Meat" Hurvitz | guest: 1 |
| Elliot Ingber | 1 |
| Eddie Jobson | 5c guest: 5b |
| Howard Johnson | 6a |
| Kanzus J. Kanzus | guest: 1 |
| Phil Kaufman | guest: 5d |
| Howard Kaylan | 2f, 2h rehearsals: 7c guest: 5c, 5d |
| Mike Keneally | 7c |
| Jerry Kessler | 3a |
| Rahsaan Roland Kirk | guest: 1 |
| Joachim Kühn | guest: 6b |
| Ricky Lancelotti | 4a |
| Barry Leef | guest: 4a |
| John Lennon | guest: 2h |
| Nigey Lennon | guest: 2h |
| André Lewis | 5b |
| David Logeman | 6b |
| Sinclair Lott | rehearsals: 6b |
| Lance Loud | guest: 4d |
| Tom Malone | 3a, 3b, 5c, 6a |
| Ed Mann | 5d, 6a, 7a, 7c |
| Steve Mann | 1 |
| Lou Marini | 5c, 6a |
| Sal Marquez | 3a, 4a |
| Tommy Mars | 5d, 6a, 6b, 6c, 7a rehearsals: 7c |
| Robert Martin | 7a, 7b, 7c |
| Johnny Martinez | guest: 4b |
| Gary "Norman Gunston" McDonald | guest: 5b |
| Kurt McGettrick | 7c |
| Joanne McNab | 3a |
| Malcolm McNab | 3a, 3b |
| Jay Migliori | 3a |
| Joni Mitchell | guest: 2f |
| Davey Moire | guest: 5b |
| Billy Mundi | 1, 2e |
| Nancy | guest: 6a |
| Thomas Nordegg | guest: 5d |
| Novi Novog | rehearsals: 5b |
| Patrick O'Hearn | 5c, 5d, 6a |
| Mats Öberg | guest: 7c |
| Yoko Ono | guest: 2h |
| Charles Owens | 3a |
| Don Pardo | guest: 5c |
| Van Dyke Parks | 1 |
| Dave Parlato | 3a, 3b |
| Brian Peters | guest: 7a |
| Jim Pons | 2h |
| Jean-Luc Ponty | 2g, 4a guest: 2f |
| Lisa Popeil | rehearsals: 7a guest: 7a |
| Don Preston | 1, 2e, 2h, 4c guest: 2h, 4a |
| Tom Raney | 3a |
| Noel Redding | guest: 1 |
| Ray Reed | 3a |
| Kurt Reher | guest: 2e |
| Mick Rogers | substitute: 4d |
| Alan Rubin | 5c, 6a |
| Dave Samuels | 5c guest: 1 |
| Daniel Schorr | guest: 7c |
| L. Shankar | guest: 6a, 6b |
| David Shaw (aka Dahaud Shaar) | guest: 5c |
| Archie Shepp | guest: 7b |
| Motorhead Sherwood | 1, 2e |
| Ken Shroyer | 3a |
| Jeff Simmons | 2a, 2e, 2f, 4b, 4c, 4d guest: 4b |
| Paul Simon | guest: 1 |
| Grace Slick | guest: 2f |
| Nicolas Slonimsky | guest: 7a |
| Mauricio Smith | 5c |
| John Smothers | guest: 5c |
| Craig "Twister" Steward | guest: 6b, 7a |
| Stephen Stills | guest: 2f |
| Mr. Sting | guest: 7c |
| Alice Stuart | 1 |
| Sugar Blue | guest: 5c |
| Chester Thompson | 4b, 4c, 4d |
| Scott Thunes | 7a, 7b, 7c |
| Fabio Treves | guest: 7c |
| Art Tripp | 1, 2a |
| Ian Underwood | 1, 2a, 2b, 2c, 2d, 2e, 2f, 2h, 3a, 4a |
| Ruth Underwood | 3a, 4a, 4b, 4d, 5c |
| Mike Urso | substitute: 4d |
| Steve Vai | 6c, 7a |
| Kin Vassy | 4a |
| Henry Vestine | 1 |
| Mark Volman | 2f, 2h rehearsals: 7c guest: 5c, 5d |
| Chad Wackerman | 7a, 7b, 7c |
| Tom Waits | guest: 4d |
| Denny Walley | 5a, 6a rehearsals: 5b guest: 7b |
| Johnny "Guitar" Watson | guest: 7b |
| Brother A. West | guest: 7c |
| Ray White | 5c, 6b, 6c, 7a, 7b |
| Ronnie Williams | guest: 5a |
| Ike Willis | 6a, 6b, 6c, 7b, 7c guest: 7a |
| Albert Wing | 7c |
| Peter Wolf | 5d, 6a |
| James "Bird Legs" Youmans | substitute: 4d |
| Ahmet Zappa | guest: 7a, 7c |
| Diva Zappa | guest: 7c |
| Dweezil Zappa | guest: 7a, 7b, 7c |
| Frank Zappa | 1, 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 3a, 3b, 4a, 4b, 4c, 4d, 5a, 5b, 5c, 5d, 6a, 6b, 6c, 7a, 7b, 7c |
| Moon Zappa | guest: 7a, 7c |
| Allan Zavod | 7b |
| Marty Zevin | rehearsals: 7a |
| Michele Zukovsky | guest: 2e |