As NBC's hit sitcom "Diff'rent Strokes" proves a long-running hit for a network desperately in need of one, its young stars: Gary Coleman, Todd Bridges, and Dana Plato face all sorts of trouble off-camera. Gary battles with his parents over the management of his salary, Todd runs into trouble with the law countless times, and Dana's career after the show meets with despair and tragedy.
| Actor | Role |
|---|---|
 Bruce A. YoungWillie Coleman | Willie Coleman |
 Lorena GaleSue Coleman | Sue Coleman |
 Bobb'e J. ThompsonGary Coleman | Gary Coleman |
 Robert Bailey Jr.Gary Coleman - 13-29 years | Gary Coleman - 13-29 years |
 Verda BridgesBetty Bridges | Betty Bridges |
| AAlon WilliamsGary Coleman - 30-31 years | Gary Coleman - 30-31 years |
 Jason SchombingKline | Kline |
 John InnesConrad Bain | Conrad Bain |
 Teryl RotheryKay Plato | Kay Plato |
 Jerry WassermanHoward Leeds | Howard Leeds |
 Rainbow Sun FrancksDion Mial | Dion Mial |
 Britt IrvinDana Plato - 17 to 34 years | Dana Plato - 17 to 34 years |
 Colin CunninghamVic Perillo | Vic Perillo |
 Shedrack Anderson IIITodd Bridges - 17 to 37 years | Todd Bridges - 17 to 37 years |
 Gary ColemanHimself | Himself |
 Todd BridgesHimself | Himself |
 Saul RubinekFred Silverman | Fred Silverman |
 Peter OuterbridgeAl Burton | Al Burton |
 Matthew BennettBrandon Stoddard | Brandon Stoddard |
| BBrennan GademansTodd Bridges - 13 to 17 years | Todd Bridges - 13 to 17 years |
| BBiski GugusheGerren Keith | Gerren Keith |
| MMalcolm StewartHerbert Kenwith | Herbert Kenwith |