As a child, Stenspil was a student at the children's theater Eventyrteatret for 5 years. Since she was 10 years old, she has voiced various cartoons and cartoon series. In addition, she has recorded a number of audio books, including
Lene Kaaberbøl's Skyggeporten. In 2009, she made her debut in front of the camera as Jasmina El-Murad in
The Protectors. She plays Mrs. Helene Aurland in all the episodes of
Badehotellet on
TV 2. Cecilie Stenspil received the Ove Sprogøe Prize of
DKK 30,000 on 21 December 2010, on
Ove Sprogøe's 91st birthday. In addition to the mentioned award, she has received Poul Reumert's honorary scholarship, Prince Henrik's scholarship and Tagea Brandt's travel scholarship. In 2017, she participated in Peter Langdal's Efter brylluppet together with Kasper Leisner and
Barbara Moleko. ==Personal life==