She started her acting career with her role of police chief Susanna von Landlitz in RTL's action series Alarm für Cobra 11 – Einsatz für Team 2 [de] and her participation to the comedy series Ladykracher on SAT.1.

She also played roles in SAT.1 series, notably in LiebesLeben [de] (nomination for Rose d'Or).

After a few singing and reading performances on stage with Roger Willemsen, she attracted a greater audience thanks to her television comedy roles, including Ein Date fürs Leben (ZDF) and Heiratsantrag mit Hindernissen (ARD).

Moreover, she has been the main actress in ZDF's comedy series Dora Heldt (Urlaub mit Papa / Tante Inge haut ab) since 2009.

Besides, Stinshoff played in NDR children's programme Sesame Street and took the role of police chief Sophie Radetzki in ZDF's Monday evening thriller series Die Tote ohne Alibi.