Original Broadway cast. Thanks to Liz Sanborn. Names in brackets are of the actors that replaced the original cast.
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Control | Braden Danner | |
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Mother | Melanie Vaughan | |
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Rusty | Greg Mowry | |
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Pearl | Reva Rice | |
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Greaseball |  | Robert Torti |
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Electra | Ken Ard | |
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Poppa | Steve Fowler | |
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Dinah | Jane Krakowski | |
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Belle | Janet Williams Adderley | |
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Ashley | Andrea McArdle (Stacia Goad) | |
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Buffy | Jamie Beth Chandler (Lola Knox) | |
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Red Caboose | Barry K. Bernal | |
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Rocky I | Frank Mastrocola | |
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Rocky II | Sean Grant | |
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Rocky III | Ronald Garza | |
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Rocky IV | Angel Vargas | |
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Flat-top | Todd Lester | |
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Dustin | Michael Scott Gregory | |
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Bobo | A.C. Ciulla (Brian Carmack) | |
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Espresso | Philip Clayton | |
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Hashamoto | D. Michael Heath (Ken Rose) | |
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Weltschaft | Michael Berglund | |
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Turnov | William Christopher Frey | |
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The Prince of Wales | Sean McDermott | |
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Joule | Nicole Picard (Kimberly Blake) | |
| Krupp | Joey McKneely (Mark Frawley) | ||
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Purse | Gordon Owens | |
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Volta | Mary Ann Lamb | |
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Wrench | Christina Youngman | |
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Greaseball's Gang | Ronald Garza | |
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Sean Grant | ||
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Todd Lester | ||
| Joey McKneely | |||
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Gordon Owens | ||
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Angel Vargas | ||
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Swings | Michael Demby Cain | |
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Mark Frawley | ||
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Anthony Galde | ||
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Lola Knox | ||
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Christine Langner | ||
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Ron Morgan | ||
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Amelia Prentice | ||
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Jennifer Prescott | ||
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Danny Strayhorn | ||
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Dwight Toppin | ||
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Broderick Wilson | ||
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Starlight Chorus | Paul Binotto | |
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Lon Hoyt | ||
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Melanie Vaughan | ||
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Mary Windholtz | ||
Understudies:
| Pearl | Lola Knox, Christine Langner | |
| Greaseball | | Mark Frawley, William Frey, Frank Mastrocola |
| Electra | Michael Demby Cain, Philip Clayton, Gordon Owens, Broderick Wilson | |
| Poppa | Danny Strayhorn, Broderick Wilson | |
| Dinah | Christine Langner, Nicole Picard | |
| Belle | Lola Knox, Amelia Prentice | |
| Ashley | Jamie Beth Chandler, Amelia Prentice, Christina Youngman | |
| Buffy | Lola Knox, Mary Ann Lamb, Christine Langner | |
| Red Caboose | Mark Frawley, Anthony Galde, Todd Lester | |
| Rocky I | Michael Demby Cain, William Frey, Broderick Wilson | |
| Rocky II | Michael Demby Cain, Dwight Toppin, Broderick Wilson | |
| Rocky III | Michael Demby Cain, Dwight Toppin, Broderick Wilson | |
| Flat-top | Mark Frawley, Anthony Galde, Joey McKneely | |
| Dustin | Anthony Galde, D. Michael Heath, Sean McDermott | |
| Bobo | Mark Frawley, Anthony Galde, Ron Morgan, Dwight Toppin | |
| Espresso | Mark Frawley, Ron Morgan, Broderick Wilson | |
| Hashamoto | Mark Frawley, Ron Morgan, Dwight Toppin | |
| Weltschaft | Mark Frawley, Anthony Galde, Ron Morgan | |
| The Prince of Wales | Mark Frawley, Ron Morgan, Broderick Wilson | |
| Joule | Lola Knox, Christine Langner, Amelia Prentice | |
| Krupp | Mark Frawley, Anthony Galde, Ron Morgan, Dwight Toppin, Broderick Wilson | |
| Purse | Michael Demby Cain, Dwight Toppin, Broderick Wilson | |
| Volta | Lola Knox, Christine Langner, Christina Youngman | |
| Wrench | Lola Knox, Christine Langner, Amelia Prentice |