Thrilling forum

Thea's largest film role is in the Eurospy movie Il nostro agente a Casablanca (1966), where she plays a very sexy role as Ingrid von Haufen, a classic femme fatale
Also worth noting that in this film, Thea and her co-star Lang Jeffries are involved in a very spectacular stunt in a scene where their car is being chased by a plane. The plane can be seen flying just right above their heads and it looks very dangerous indeed!

Another big credited role in Mondo pazzo... gente matta! (1966) as Anna

Signori si nasce (1960) as Soubrette

Asso di picche - Operazione controspionaggio (1965) as George's lover.
It's another credited role, but a rather short one. She appears at the very start of the film, encountering Giorgio Ardisson in the casino and being seduced by him. After that she does not appear again until in the very last scene, waiting for Ardisson in his bed when he returns home. pics upgraded

Totòtruffa 62 (1961) as Girl with Antonio in the hotel lobby

Maciste contro Ercole nella valle dei guai (1961) as Mermaid. Unfortunately this is as close as you get to her, so it's about 95% certain until an HD image can confirm it.

Il successo (1963) as Girl in the office corridor, looking strangely at Vittorio Gassman when she sees him talking to himself

Found one of her fotoromanzo, but in French
Manon No60 (june 1969) Promesse d'amour, seen on the cover and credited as Margreth

Teseo contro il minotauro (1960) as Sacrificial girl

Mondo cane 2 (1963) as Cover model for violent pulp novels. She's first seen getting ready for a photo shoot...
...posing during the shoot...
...and relaxing in the dressing room with Umberto Salomone