Summer Peta Vaigncourt-Strallen is an English actress who has performed various roles on stage and screen. Her most notable theatre credits include Meg Giry in the West End production of Love Never Dies and Maria von Trapp in Andrew Lloyd Webber's revival of The Sound of Music at the London Palladium.

Love Never Dies is a romantic musical with music by Andrew Lloyd Webber, lyrics by Glenn Slater, and a book by Lloyd Webber, Ben Elton, Frederick Forsyth, and Slater. It is a sequel to the long-running 1986 musical The Phantom of the Opera and was loosely adapted from Forsyth's 1999 novel The Phantom of Manhattan.