Musicians
- Ray Barretto: Congas, american drums on A2 & A3
- Willie Colon: Trombone
- Larry Harlow: Piano, solo on A2, producer
- Johnny Pacheco: Leader, flute solo on B4, coro, recording director
- Ricardo Ray: Piano on A2, A3 & A4, arrangements (A3)
- Roberto Roena: Bongos, congas on A2 & A3
- Bobby Valentin: Bass, arrangements (A1, B4)
- Nicky Marrero: Timbales
- Yomo Toro: Tres
- Barry Rogers: Trombone
- Reinaldo Jorge: Trombone
- Lewis Kahn: Trombone
- Ray Maldonado: Trumpet
- Louis "Perico" Ortiz: Trumpet
- Hector "Bomberito" Zarzuela: Trumpet

- Santos Colon: Vocal on B4, coro
- Hector Lavoe: Vocal on B1 & B4, coro
- Ismael Miranda: Vocal on A4 & B4, coro
- Justo Betancourt: Vocal on A5 & B4
- Pete "Conde" Rodriguez: Vocal on B4

The following artists appear courtesy of Vaya Records, Inc.:
- Rubén Blades: Vocal on B3
- Bobby Cruz: Vocal on A3 & B4
- Cheo Feliciano: Vocal on A1 & B4, coro
- Ismael Quintana: Vocal on B2 & B4
- Ricardo Ray
Courtesy of Cotique Records Corp.:
- Chivirico: Vocal on A2

- J. Gutierrez: Composer A1
- P. Ortega: Composer A2
- C. Curet Alonso : Composer A3
- E. Davidson: Composer A4
- H. Barbosa: Composer A5
- L. Reis: Composer A5
- T. Renis: Composer B1
- A. Testa: Composer B1
- B. Manrique: Composer B2
- F. Reyna: Composer B4

- Jerry Masucci: Producer
- Louie Ramirez: Arrangements (B1, B2, B3), producer
- Papo Lucca: Arrangements (A2, A4, A5)

Recorded at Good Vibrations Sound Studios, N.Y.C.
Mixed at Good Vibrations and Bell Sound, N.Y.C.
- Jon Fausty: Recording engineer, mixing engineer
- Ron Levine: Art & design