| Actor | Patrick Duffy (as Frank Lambert), Brandon Call (as J.T. Lambert), Christopher Castile (as Mark Foster), Josh Byrne (as Brendan Lambert (Seasons 1-6)), Sasha Mitchell (as Cody Lambert), Jason Marsden (as Rick Halke (Guest Appearance, Season 3; Main Cast, Seasons 5–7)), Bronson Pinchot (as Jean-Luc Rieupeyroux (Season 6)) |
| Actress | Suzanne Somers (as Carol Foster-Lambert), Staci Keanan (as Dana Foster), Angela Watson (as Karen Foster), Christine Lakin (as Alicia "Al" Lambert), Kristina Meyering (as Lily Foster-Lambert #1 (Seasons 4-5)), Lauren Meyering (as Lily Foster-Lambert #1 (Seasons 4-5)), Emily Mae Young (as Lily Foster-Lambert #2 (Seasons 6-7)), Patrika Darbo (as Penny Baker (Season 1)), Peggy Rea (as Ivy Baker (Season 1)), Alexandra Adi (as Samantha Milano (Seasons 6-7)) |
| Broadcaster (Season 7) | CBS |
| Broadcaster (Seasons 1–6) | American Broadcasting Company (ABC) |
| Creator | William Bickley, Michael Warren |
| Developed By | Thomas L. Miller, Robert L. Boyett |
| Production Company | Bickley-Warren Productions, Miller-Boyett Productions |
| Production Company (1991–1993) | Lorimar Television |
| Production Company (1993–1998) | Warner Bros. Television |
| Links | https://en.wikipedia.org/wiki/Step_by_Step_(TV_series) · https://www.imdb.com/title/tt0101205/?ref_=nv_sr_srsg_0 |
Added by MissBabyGirl