Aldenhoven remains best known for her role in the television soap opera The Young Doctors as Nurse Julie Holland. She appeared in the series from 1978 to 1981.

Aldenhoven made a guest appearance in Prisoner, appearing in the first episode as ill-fated inmate Sally Lee. She was invited back several years later to play another guest role. She also had guest roles in the first two episodes of Cop Shop – as a child prostitute and in later episodes as a pregnant school girl; Carson's Law; Holiday Island; I Can Jump Puddles; Truckies; Special Squad and Who's Baby.