Ivy Holzer was an actress active in Italian films from the late 1950's and throughout the 60's (with maybe a couple of unconfirmed later appearances).
A few websites say she was born in Rome in 1940, but with no definite date or information where this originated it should be treated as unconfirmed. She is presumed to be still living.
Ivy was tall, usually blonde and with a notably long neck - somewhat similar in looks to other actresses of her generation like Annie Gorassini and Dina De Santis, with whom she was no doubt in competition for roles.
Her earliest known film roles come from 1958, after which she worked steadily for the next 12 years or so, working her way up from uncredited bit parts to a few leading roles from the mid-60's. She made some notable appearances in the peplum genre and had a flair for comedy which landed her roles in a number of productions with Totò and Franco & Ciccio. Like many other actresses of her generation she disappeared at the end of the sixties, with a couple of rumoured one-off later appearances in very obscure productions.
From her Italian Wikipedia and Tototruffa profiles it looks like she also worked quite extensively as a theatre actress.
I have found a number of undocumented early roles for Ivy, so it's quite possible there will be more to be found.
- È arrivata la parigina (credited as "Ivi Olzer" but not found)
- L'amore nasce a Roma .... Daughter of the janitor (credited as "Ivi Holzer")
- Totò nella luna .... The new maid (uncredited)
- Ercole e la regina di Lidia .... Handmaiden to Queen Omphale (uncredited)
- L'arciere nero .... Gemma (credited)
- La cento chilometri .... Miss 100 chilometri (credited as "Yvi Holzer")
- Non perdiamo la testa .... Party guest (uncredited)
- The Nun's Story .... Postulant (uncredited)
- L'ultimo zar .... One of Rasputin's women (uncredited)
- La strada dei giganti .... Loretta (credited)
- Sanremo - La grande sfida .... Girl with the director (credited)
- Tu che ne dici? .... Woman in the showers (uncredited)
- L'ammutinamento .... Sarah Wickes (credited)
- L'onorata società .... Maria Zappalà (credited as "Ivi Holzer")
- Le meraviglie di Aladino .... Amazon (uncredited)
- Mina...fuori la guardia .... Emy (credited as "Ivi Holzer")
- Anno 79: La distruzione di Ercolano .... Claudia (credited as "Ivy Stewart")
- La cuccagna .... Pan Am employee (credited)
- Le ore dell'amore .... Ottavio's grumpy girlfriend (uncredited)
- Obiettivo ragazze .... Sonia (credited)
- Totò contro i quattro .... Womenswear shop assistant (credited as "Ivy Olsen")
- Che fine ha fatto Totò baby .... Inga (credited)
- FBI chiama Istanbul .... role? (poster credit)
- I due gladiatori .... Emilia (credited)
- La rivolta dei pretoriani .... Susa (credited)
- Michelino Cucchiarella .... role? (poster credit)
- Se permettete parliamo di donne .... Girl at the pool bar (uncredited)
- Il coraggioso, lo spietato, il traditore .... Lorna (credited)
- Il lungo, il corto, il gatto .... Gina (credited)
- Tutto Totò (TV series) - ep. 1: "Il latitante" .... Piceretti's daughter (credited)
- Tutto Totò (TV series) - ep. 4: "Don Giovannino" .... German girl in the flower shop (credited)
- Tutto Totò (TV series) - ep. 5: "La scommessa" .... Liliana (credited)
- Tutto Totò (TV series) - ep. 6: "Totò Ciak!" .... Woman with Siamese (credited)
- Il figlio di Aquila Nera .... Tamara (credited)
- Odia il prossimo tuo .... Mrs. Malone (credited)
- Più tardi Claire, più tardi... .... Ivy (credited)
- Samoa, regina della giungla .... Nancy White (credited)
- Temptation .... role? (poster credit)
- Ogni lasciato è perso .... Mother Beatrice (credited - role unconfirmed)
- Dinanzi a noi il cielo (1958) ANICA
- L'eroe (1976 TV movie) IMDb
- Il vecchio testamento (1963) includes a credit for "Ivy Stewart", the pseudonym she used in Anno 79: La distruzione di Ercolano, but Ivy is nowhere to be seen