Emelin artistic director Michael Bush helms the production, which will officially open May 7 for a run through May 18. Williamson, who also wrote the musical evening, is joined onstage by John Robert Armstrong, Cole Burden, Dan Maceyak and David Perlow.
In Pure Heaven, production notes state, Williamson "portrays Thompson as she imagines her returning from her 'home sweet heaven' to set the record straight. Pure Heaven celebrates and examines Thompson as an under-rated yet key part of the American cultural landscape."
The creative team also includes Clint Edwards (arranger/orchestrator), Steven Watkins (music director), Kelli Barclay (choreographer), Tony Ferrieri (set designer), Daniel James Cole (costume designer), Josh Bradford (lighting designer) and Bryan McPartlan (sound designer).
Ruth Williamson, who played Jacqueline in the revival of La Cage, has also been seen on Broadway in The Music Man (Outer Critics Circle nomination), Epic Proportions, Little Me, Guys and Dolls, Smile, Musical Comedy Murders of 1940 and Annie as well as the City Center Encores! mounting of DuBarry Was a Lady. Her Off-Broadway credits include The Green Heart (Drama Desk nomination), The English Teachers, Queen Amarantha, The Good Times Are Killing Me and The Leonard Bernstein Revue. On screen Williamson has been seen in "Legally Blonde II," "Easy Six", "Family Man," "Malcolm X," "Foreign Student," "Die Mommie, Die," "Psycho Beach Party," "Double Parked," "The O.C.," "The Practice," "Kingpin," "ER," "What I Like About You," "Enterprise," "Law & Order" and "Nip/Tuck."
Kay Thompson was a bigger-than-life singer-actress-vocal coach (seen in the film "Funny Face") who also wrote the popular "Eloise" children's books. Show times are Thursday-Saturday at 8 PM, Saturday and Sunday at 3 PM.
The Emelin Theatre is located at 153 Library Lane in Mamaroneck, NY. For tickets, priced $32-$35, call (914) 698-0098 or visit www.emelin.org.