Ingram got her start in musical theater when she was nine years old, when her mother found her an audition for a local production of Annie where she played Molly. Afterwards, she worked her way up to West End productions. She won the Laurence Olivier Award for her role as "Matilda" in Matilda the Musical in which she played the role for 2 years starting in 2010 when the show first opened in Stratford Upon Avon before moving with it to London until 2012. She has a minor part in the film Les Misérables.
Other projects include singing at the Royal Albert hall along side Alan Clayton with The rings of akhaten from Doctor Who where she played a young girl named Merry for the 50th anniversary proms. Ingram has also this year appeared an episode of Doctors starring as Lios Wren and has filmed another project which is to be released in 2015.
Ingram has a form of brittle bone disease (Osteogenesis imperfecta). She has regularly fractured bones since she was born. Kerry manages to cope with the help of Pamidronate drug infusions which are delivered in four-hour sessions, once a day, for three days every four months at Heatherwood Hospital and Wexham Park. She has broken a total of around 30 bones in her life time. Her condition also makes her short for her age, Ingram is currently 5 feet tall which is a little below average and was told she had stopped growing completely around a year ago.Kerry revealed at this years TitanCon that this made it easy for her to relate to Shireen.
|Season Three credits|
|Valar Dohaeris||Dark Wings, Dark Words||Walk of Punishment||And Now His Watch is Ended||Kissed by Fire|
|The Climb||The Bear and the Maiden Fair||Second Sons||The Rains of Castamere||Mhysa|
|Season Four credits|
|Two Swords||The Lion and the Rose||Breaker of Chains||Oathkeeper||First of His Name|
|The Laws of Gods and Men||Mockingbird||The Mountain and the Viper||The Watchers on the Wall||The Children|
|Season Five credits|
|The Wars to Come||The House of Black and White||High Sparrow||Sons of the Harpy||Kill the Boy|
|Unbowed, Unbent, Unbroken||The Gift||Hardhome||The Dance of Dragons||Mother’s Mercy|