So this is the true Broadway performance history of my faceclaims. I am using their true work as the work they have done in this universe. If I have added anything, I will point it out. Some movies have also been included, but only ones relevant to the story. 

Cecelia Marcellini portrayed by Christy Altomare (age: 35)
ACTUAL HISTORY:
▪️Spring Awakening (2008-10): Wendla Bergmann; OG national touring cast (age 21)

▪️Carrie (2012): Sue Snell; Off-Broadway Revival Cast

▪️Mamma Mia! (2012-13): Sophie Sheridan; Broadway

▪️Anastasia (2016-19): Anya/Anastasia; World Premier cast; OG Broadway Cast

MY ADDITIONS
▪️Wicked (2003): Ensemble; Broadway (age 16)

▪️Grease Live! (2014): Sandy
     ▪️OG: Julianne Hough (2016)
         I changed date to line up better

▪️Disney's Newsies: The Broadway Musical (2017): Katherine (filmed and available to stream on Disney+)
     ▪️OG: Kara Lindsay (she is
          phenomenal in this role, just an
          fyi) 
     ▪️For timing purposes, she took
         some time off from Anastasia to
         perform and film this show 

Ronen Marcellini portrayed by Mike Faist (age: 30)
ACTUAL HISTORY:
▪️Newsies (2011): Morris Delancy (Jack Kelly understudy); Regional

▪️Newsies (2012-12): Morris Delancy (Jack Kelly understudy); Broadway

▪️Appropriate (2014): Rhys Thurston; Off-Broadway

▪️A Month In Country (2015): Aleksei Belyaev; Off-Broadway

▪️Dear Evan Hansen (2015-2018): OG Connor Murphy; Washington D.C. (15), Off-Broadway (16), Broadway (16-18)

▪️Days of Rage (2018): Spence; Off-Broadway

▪️West Side Story (movie) 2021: Riff

MY ADDITIONS
Disney's Newsies: The Broadway Musical (2017): Morris Delancy (filmed and available to stream on Disney+)
     ▪️OG: Devin Lewis
     ▪️For timing purposes, he took
         some time off from Dear Evan
         Hansen to perform and film this
         show 

Kaidan Marcellini portrayed by Ben Cook (age: 24)
ACTUAL HISTORY:
▪️A Christmas Carol (2007): Tiny Tim; Washington D.C.

▪️Macbeth (2008): Young Macduff; Washington D.C.

▪️A Christmas Carol (2008): Urchin/Ignorance/Turkey Boy; Washington D.C.

▪️The Heavens Are Hung In Black (2009): Tad Lincoln; Washington D.C.

▪️Ragtime (2009-10): Understudy Edgar; Washington D.C. (09), Broadway (10)

▪️The Golden Age (2010): The Page; Washington D.C.

▪️Billy Elliot the Musical (2010-13)
     ▪️Tall/Posh Boy, Michael.   
          Understudy (10-11); Broadway
     ▪️Michael (11-12); National Tour
     ▪️Billy (12-13); National Tour

▪️Newsies the Musical (2014-16): Race, Crutchy Understudy; National Tour

▪️Tuck Everlasting (2016): Ensemble; Broadway

▪️Mean Girls (2017): Ensemble; Pre-Broadway Run

▪️Disney's Newsies: The Broadway Musical (2017): Race (filmed and available to stream on Disney+)

▪️Mean Girls (2018-19): Ensemble; Broadway

▪️West Side Story (2019-20): Riff; Broadway

▪️West Side Story (movie) 2021: Mouthpiece

Sofie Marcellini portrayed by Bebe Neuwirth (age: 63)
ACTUAL HISTORY:
▪️A Chorus Line (1980): Sheila; Broadway

▪️Little Me (1982): Boom Boom Girl; Broadway

▪️Upstairs at O'Neals (1982): Performer; Off-Broadway

▪️Sweet Charity (1986): Nickie; Broadway

▪️Chicago (1992): Velma Kelly; Los Angeles

▪️Kiss of the Spider Woman (1992): Spider Woman/Aurora; West End

▪️Damn Yankees (1994): Lola; Broadway

▪️Pal Joey (1995): Melba Snyder; Encores!

▪️Chicago (1996): Velma Kelly; Broadway

▪️The Threepenny Opera(1999): Jenny Diver; ACT San Francisco

▪️Fosse (2001): Various; Broadway

▪️Everett Beekin (2001): Anna/Nell; Off-Broadway

▪️Funny Girl (2002): Fanny Brice; Concert

▪️The Exonerated (2002): Sunny Jacobs; Off-Broadway

▪️Writer's Block (2003): Sheila; Off-Broadway

▪️Here Lies Jenny (2004): Jenny; Off-Broadway

▪️Chicago (2006): Roxie Hart; Broadway

▪️The Addams Family (2009): Morticia Addams; Chicago & (2010); Broadway

▪️A Midsummer Night's Dream (2012): Hippolyta/Titania; Off-Broadway

▪️Golden Age (2012): Maria Malibran; Off-Broadway

▪️Chicago (2014): Matron "Mama" Morton; Broadway

▪️Hey, Look Me Over! (2018): Mimi; Encores!

▪️The Bedwetter (2022): Nana; Off-Broadway

Riccardo Marcellini portrayed by Matthew Broderick (age: 60)
ACTUAL HISTORY:
▪️Torch Song Trilogy (1981): David; Off-Broadway

▪️Brighton Beach Memoirs (1983): Eugene Jerome; Broadway

▪️Biloxi Blues (1985): Eugene Morris Jerome; Broadway

▪️The Widow Claire (1986-87): Horace Robedaux; Off-Broadway

▪️How to Succeed in Business Without Really Trying (1995): J. Pierrepont Finch; Broadway

▪️The Pussycat and the Expert Plumber Who Was a Man (1998): Tom Thomas; Off-Broadway

▪️Night Must Fall (1999): Dan; Broadway

▪️Taller Than a Dwarf (2000): Howard Miller; Broadway

▪️The Producers (2001): Leopold "Leo" Bloom; Chicago & (2001–02); Broadway

▪️Short Talks on the Universe (2002): Lucifer; Broadway

▪️The Foreigner (2004): Charlie Baker; Off-Broadway

▪️The Odd Couple (2005): Felix Unger; Broadway

▪️The Philanthropist (2009): Phillip; Broadway

▪️The Starry Messenger (2009): Mark Williams; Off-Broadway

▪️Nice Work If You Can Get It (2012-13): Jimmy Winter; Broadway

▪️It's Only a Play (2014-15): Peter Austin; Broadway

▪️Sylvia (2015): Greg; Broadway

▪️Oh, Hello on Broadway (2016): Guest; Broadway

▪️Shining City (2016): John; Off-Broadway

▪️Evening at the Talk House (2017): Robert; Broadway

▪️The Seafarer (2018): Mr. Lockhart; Off-Broadway

▪️The Closet (2018): Martin O'Reilly; Williamstown Theatre Festival, Massachusetts

▪️Celebrity Autobiography (2018): Performer; Off-Broadway

▪️The Starry Messenger (2019): Mark Williams; West End, London

▪️Plaza Suite (2020): Sam Nash / Jesse Kiplinger / Roy Hubley; Boston & (2022); Broadway

Catalina Diaz portrayed by Ariana Debose (age: 31)
ACTUAL HISTORY:
▪️Hairspray (2011): Little Inez; North Carolina Theatre

▪️Bring It On (2011): Nautica; Alliance Theatre

▪️Company (2011): Ensemble; Avery Fisher Hall

▪️Bring It On (2011): Nautica, u/s Danielle; National Tour

▪️Bring It On (2012): Nautica, u/s Danielle; Broadway

▪️Motown: The Musical (2013): Ensemble, Mary Wilson, u/s Diana Ross; Broadway

▪️Pippin (2014): Leading Player; Broadway

▪️Hamilton (2015): Ensemble/The Bullet: Broadway

▪️Les Misérables (2015): Éponine; Connecticut Repertory Theatre

▪️Hamilton (2015): Ensemble; Broadway

▪️A Bronx Tale (2016): Jane; Broadway

▪️Summer: The Donna Summer Musical (2017): Disco Donna; La Jolla Playhouse

▪️Summer: The Donna Summer Musical (2018): Disco Donna; Broadway

▪️The Prom (movie) 2020: Alyssa Green

▪️West Side Story (movie) 2021: Anita 

Be sure to check out any and all of these shows. Whether they are musicals or plays, they are all amazing. And these actors are truly AMAZING.