Season 1

Season 1 of Clarissa Explains It All aired from March 1, 1991 to June 15, 1991. It was released on DVD in May 2005.

Main Cast

 * Melissa Joan Hart as Clarissa Darling (13/13)
 * Jason Zimbler as Ferguson Darling (13/13)
 * Sean O'Neal as Samuel "Sam" Anders (12/13)
 * Elizabeth Hess as Janet Darling (13/13)
 * Joe O'Connor as Marshall Darling (13/13)

Recurring Cast

 * Heather MacRae as Aunt Mafalda (1/13)
 * David Eck as Clifford Spleenhurfer (1/13)
 * Bob Noble as Dr. Festerspoon (1/13)