Bayan shekaru biyu a makarantar wasan kwaikwayo, Sladen ta fara aiki a kamfanin wasan kwaikwayo na Liverpool Playhouse a matsayin mataimakin manajan mataki. Fitowarta ta farko a filin wasan kwaikwayon ta kasance a matsayin bawa a cikin dare na goma sha biyu. Bayan 'yan watanni, ta yi wasan gawa a The Physicists. Duk da haka, an tsawata mata saboda giggling a kan mataki saboda mijinta na gaba Brian Miller yana raɗa kalmomin "Respiration, nil Aston Villa biyu" a cikinta yayin da yake wasa da likita. Sladen ya kasance mai taimakawa mai kyau wanda ba ta samun rawar gani ba, matsalar da aka warware ta lokacin da ta yi aiki a filin wasan kwaikwayon.
Birnin Manchester