He appeared in a total of 71 major-league games for the Philadelphia Phillies, New York Mets, Houston Astros, and Cleveland Indians.

Kroll, a native of Culver City, California, graduated from Reseda High School and attended Brigham Young University and Los Angeles Pierce College.

As a rookie pitcher in 1964, Kroll committed a league-leading four balks in just ten games and 242⁄3 innings pitched.

[1] In his only full year in the majors, 1965, Kroll worked in 32 games for the Mets, including 11 starting assignments.

Kroll finished his big league career with six wins, seven defeats, and an earned run average (ERA) of 4.24.