When the radiant Shannon O’Boyle joins Gotay for “Something to Believe In,” it’s lump in the throat time. On her own, O’Boyle’s precision dazzles in the clever patter song, “Watch What Happens.”
— Roy C. Dicks, The News & Observer
Shannon O’Boyle plays one of the only female roles to the hilt; razor-sharp wit and indefatigable determination to change the world for the better make her one of the most compelling pieces of the story.

O’Boyle’s performance is so winning that it almost makes the romance that blossoms between her character and Jack a sidebar (pun intended).
— Melanie Simmons, Triangle Arts & Entertainment
I must say that out of all the Katherine’s I’ve seen, Shannon O’Boyle’s performance probably comes across the most like a real reporter. Which to me, makes her chemistry with Jason Gotay’s Jack interesting to develop in this production as she is the more responsible one.
— Jeffrey Kare, Broadway World
The acting is pretty stellar here too. Shannon O’Boyle and Jason Gotay star as Katherine and Jack. Gotay is super charming as Jack Kelly, and Shannon O’Boyle stands out with her sassy version of Katherine Plummer, a young reporter with a secret whom the boys meet on their quest.
— Susie Potter, Triangle Arts & Entertainment
They are urged on by an up-and-coming female reporter named Katherine Plumber (a delightful Shannon O’Boyle), who not only genuinely supports their effort but also sees this as an opportunity for her to break into the male-dominated news reporting field. Shannon O’Boyle is spot-on as Katherine and makes use of every moment on the stage.
— Garrett Southerland, Talkin' Broadway
And no matter how big the role, whether its two-time Tony winner Sutton Foster making moments come to brilliant life, or her understudy Shannon O’Boyle, who stepped in on her fair share of rehearsals without thinking twice, the quality of work being done is nothing short of tremendous.
— Ben Clark, composer/lyricist for The Circus in Winter
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I saw the “Axe” cast starring Shannon O’Boyle as Lizzie, and she was perfection, able to move from throat-shredding vocals to a pure, clear, angelic note in the swing of an ax. You won’t hear a better voice on Broadway.
— Andrea Simakis, The Plain Dealer
The four-woman cast has been well-honed by Bussert. They are emotionally present at all times, never wavering from their excitement of telling the tale…Shannon O’Boyle is pretty, innocent looking, and a perfect Lizzie. She doesn’t appear to be capable of such a heinous deed, but when she lets loose vocally and emotionally, you can believe that she whacked away.
— Roy Berko, Cleveland - BroadwayWorld.com
Acrobatic moves and even some superior tap dance in included, especially when Katherine Plumber, Kelly’s love interest (Shannon O’Boyle), joins in, notably in “King of New York,” the Act II opener.

Kelly (Gotay) and Plumber (O’Boyle) are an electricity-generating duo, and their duets are show stoppers.
— Alan R. Hall, CVNC
Shannon O’Boyle brings depth and likeability to Vivienne Kensington.
— Tina Farmer, KDHX.org
Shannon O’Boyle is cool as a cucumber as Elle’s calculating nemesis, Vivienne.”
— Mark Bretz, LaDue News