Staci Keanan and Sasha Mitchell in Step by Step (1991)

Debbie Gibson and Sasha Mitchell in Step by Step (1991)

Christopher Castile in Step by Step (1991)

Christopher Castile, Staci Keanan, and Sasha Mitchell in Step by Step (1991)

Patrick Duffy and Suzanne Somers in Step by Step (1991)

Christopher Castile and Michelle Williams at an event for Step by Step (1991)

Patrick Duffy, Suzanne Somers, Christine Lakin, Patrika Darbo, Josh Byrne, Brandon Call, Christopher Castile, Staci Keanan, Peggy Rea, and Angela Watson in Step by Step (1991)

Christine Lakin, Jason Marsden, and Brandon Call in Step by Step (1991)

Christine Lakin, Staci Keanan, and Angela Watson in Step by Step (1991)

Patrick Duffy, Suzanne Somers, and Tony Longo in Step by Step (1991)

Suzanne Somers and Christopher Castile in Step by Step (1991)

Patrick Duffy, Suzanne Somers, Christine Lakin, Josh Byrne, Brandon Call, Christopher Castile, Staci Keanan, Sasha Mitchell, and Angela Watson in Step by Step (1991)

Patrick Duffy, Suzanne Somers, Christine Lakin, Patrika Darbo, Josh Byrne, Brandon Call, Christopher Castile, Staci Keanan, Peggy Rea, Angela Watson, and Chris in Step by Step (1991)

Alexandra Adi and Brandon Call in Step by Step (1991)