James Carter Pankow, born on August 20, 1947, in St. Louis, Missouri, is an influential trombonist, composer, and arranger best known as a founding member of the rock band Chicago. Of German and Irish descent, Pankow was one of nine siblings and the older brother of actor John Pankow. His family moved to Park Ridge, Illinois, when he was eight years old. Influenced by his musician father, Wayne, Pankow began playing the trombone at St. Paul of the Cross Elementary School, despite initial reluctance. His talent was nurtured by Father George Wiskirchen at Notre Dame High School, where he developed a passion for jazz.

Pankow earned a full music scholarship to Quincy College but transferred to DePaul University, where he joined The Big Thing, which later became Chicago. As a member of Chicago, Pankow is renowned for his brass arrangements and compositions, including hits like "Make Me Smile" and "Colour My World." He has also collaborated with other artists, contributing to albums by Three Dog Night, the Bee Gees, and Toto.

In his personal life, Pankow was married to his first wife, Karen, for 18 years, with whom he has two children, Jonathan and Sarah. He is currently married to Jeanne Pacelli, with whom he has two more children, Carter and Lilli. Known for his engaging personality and stage presence, Pankow remains an active and celebrated figure in the music industry.