Ricky (Rick) Schroder as Ricky Stratton
Joel Higgins as Edward Stratton III
Erin Gray as Kate Summers Stratton
Leonard Lightfoot as Leonard Rollins (1982-1983)
Franklyn Seales as Dexter Stuffins (1983-1987)
Jason Bateman as Derek Taylor (1982-1984)
Corky Pigeon as Freddy Lippincottleman (1983-1985)
Alfonso Ribeiro as Alfonso Spears (1984-1987)
Bobby Fite as J.T. Martin (1983-1984, occasional)
John Houseman as grandfather Edward Stratton II (occasional)
Ray Walston as Uncle Harry Summers (1985)
Billy Jacoby as Brad (1985-1986, occasional)
