Both IMDb and Wikipedia list an unconfirmed birth date of November 2nd 1918 in Pescara, Italy. Both sites also have him listed as still living and currently aged 104 (rather unlikely, but not quite impossible). No other biographical details are currently known.
The first reported sighting of Eolo comes in De Sica's Ladri di biciclette (1948), a film which utilised largely non-professional actors - there is then a 22-year gap before his next-known acting role. He has 4 production credits scattered through the 50's and 60's. He returned to acting in 1970 at the age of 52 (assuming his date of birth is correct, I'm rather doubtful), and throughout the 70's he was busy both as an actor and production manager/supervisor. From the start of the 80's he only has acting credits and he kept busy through until 1991, with 2 later appearances from 1998 and 2001. For his acting credits he often used the pseudonym "Al Capri".
When I first posted his topic all internet sources had him listed as still living and aged 104, but a date of death September 15th 2007 (aged 88) has since appeared on IMDb and Wikipedia, which of course give no source for the information, but really it does seem far more likely than him being still living and aged 107.
I have listed his production credits separately since he does not appear in many of these titles.
- Terzo canale - Avventura a Montecarlo .... Casting director (uncredited)
1972 - Frankenstein '80 .... Witness to the accident (uncredited as actor)
- La mano lunga del padrino .... Man in bed with Sabrina (uncredited as actor)
1974 - I sette magnifici cornuti .... Benito (credited)
- Morbosità .... Ippolito (credited as "Vit Capri")
- Moses the Lawgiver (Film / TV mini-series) .... Priest (uncredited)
1975 - Emanuelle e Françoise .... Film producer (credited as "Al Capri")
- L'ammazzatina .... Rapist (uncredited as actor)
- La spacconata .... Captain Fairmount (uncredited as actor)
1976 - La cameriera nera .... Galeazzo (credited as "Al Capri")
- La clinica dell'amore .... Von Stronfen (credited as "Al Capri")
- Quelli della calibro 38 .... Saro Nistri (credited)
1977 - Anno zero - Guerra nello spazio .... Journalist (uncredited)
- Casa privata per le SS .... Nazi General (credited as "Al Capri")
- La polizia è sconfitta .... Bertini (uncredited)
1978 - Agonas horis telos .... role unknown (credited as "Al Capri")
- Avere vent'anni .... Detective (uncredited)
- Battaglie negli spazi stellari .... Journalist (uncredited)
- Follie di notte .... Leader of the sodomite sect (uncredited)
- Occhi dalle stelle .... Security guard (uncredited)
- Quando c'era lui... caro lei! .... Mussolini (credited as "Al Capri")
- Solamente nero .... Restaurant customer (uncredited)
- Voglia di donna .... Police superintendant (uncredited)
1979 - Caligola .... Executioner (uncredited)
- Caro papà .... Buddhist (uncredited)
- Dolly il sesso biondo ..... role unknown (credited)
- Dottor Jekyll e gentile signora .... Henchman (credited)
- Giallo a Venezia .... Maestrin (credited)
- L'albero della maldicenza .... Lucillo (credited as "Al Capri")
- L'anno dei gatti .... Bouncer (credited as "Al Capri")
- Pensione amore servizio completo .... The Professor (uncredited)
- Riavanti... Marsch! .... Party guest (uncredited)
- Un uomo in ginocchio .... Carmelo (credited)
1980 - Action .... King Kong (credited)
- Il lupo e l'agnello .... Policeman (credited)
- Odio le bionde .... Casino debt collector (credited)
- Sono fotogenico .... White Cloud (credited)
- Theo gegen den Rest der Welt .... Baffo (credited)
- Un sacco bello .... Motorist (uncredited)
- Una vacanza bestiale .... Comrade Volchik (credited)
1981 - Bianco, rosso e Verdone .... Manager of Mimmo's polling station (uncredited)
- Bollenti spiriti .... Donor (uncredited)
- Caligola e Messalina .... Torturer (uncredited)
- I carabbinieri .... Ennio (uncredited)
- Miracoloni .... Marshall Pilato (credited)
1982 - Banana Joe .... General (uncredited)
- Nerone e Poppea .... Torturer (uncredited)
- Storia d'amore e d'amicizia (TV mini-series) Ep. 3: "La persecuzione, 1938-1940" .... Driving instructor (credited)
- Viuuulentemente mia .... The Commissioner (credited)
1983 - Al bar dello sport .... Magalini (credited)
- La chiave .... Commander making the speech (credited)
- Le storie di Mozziconi (TV series) Ep. 10: "Mozziconi assediato" .... Bar owner (credited as "Al Capri")
- Sfrattato cerca casa equo canone .... Don Ciccio (credited)
1984 - Bombolo - il comico preso dall'osteria (TV special) .... Cheese maker (credited)
- I due carabinieri .... Hotel receptionist (credited)
- Quei trentasei gradini (TV mini-series) Eps. 1, 2 .... The Beggar (credited)
1986 - Caccia al ladro d'autore (TV series) S. 1, ep. 6: "Il calice di Murano" .... Bulgarian killer (uncredited)
- Ginger e Fred .... Kojak (uncredited)
- La galette du roi .... Cabrini (credited)
- Professione vacanze (TV series) Ep. 1: "Speriamo che sia vacanza" .... Don Turi (credit unknown)
- Troppo forte .... Film extra (uncredited)
1987 - Capriccio .... Garden party waiter (credit unknown)
- La piovra (TV series) S. 3, eps. 4, 6 .... Bald man (credited in eps 4, 5, 6, 7)
- Stahlkammer Zürich (TV series) S. 1, ep. 4: "Annunziata" .... Turino de Lada (credited)
- Tentazione .... Rapist (uncredited)
1989 - Il vigile urbano (TV series) Ep. 4: "Il ladro in scarpe gialle" .... Commissioner (credited)
- Rouge Venise .... Man in the casino (credited)
1991 - Paprika .... Ammiraglio Ciancalasme (credited)
1998 - L'odore della notte .... Rich woman's father (credit unknown)
- Ladri di biciclette (1948) ANICA. I didn't recognise him, but with no reference as to how he looked in 1948 it's very probable I missed him.
- Vento, vento, portali via con te (1976) ANICA as Pierre Marsiglia
- Una donna senza nome (1985) IMDb
- Un'isola (1986 TV series) Eps. 1 & 2. IMDb as Bar customer
- Le diaboliche (1987) IMDb
- Vado a riprendermi il gatto (1989) ANICA
- Lo strano caso del signor Kappa (2001) ANICA
- Il cielo brucia …. credited as Production secretary
1960 - Uomini del mare (short documentary) .... credited as "E. Capritti" as Production manager
1969 - 36 ore all'inferno .... credited as Production supervisor
1972 - Byleth (Il demone dell'incesto) .... credited as Production supervisor
- Frankenstein '80 .... credited as Production inspector
- La mano lunga del padrino .... credited as Production supervisor
1973 - Prima e dopo l'amore... un grido d'allarme .... credited as Production inspector
1974 - Ordine firmato in bianco .... credited as Production supervisor
1975 - L'ammazzatina .... credited as Ispettore di produzione
- La spacconata .... credited as Production inspector
- Zanna Bianca e il cacciatore solitario .... credited as Production manager
1976 - Cuginetta, amore mio! .... credited as Production supervisor
- L'infermiera... di mio padre .... credited as Production supervisor
- Mark colpisce ancora .... credited as Production supervisor
1977 - Casa privata per le SS .... credited as Unit manager
1978 - Provincia violenta .... credited as Production manager
- La grande savana (1955) IMDb as Production supervisor
- Noi siam come le lucciole (1976) IMDb as Production supervisor
- Il cambio della guardia (1962) IMDb as Camera assistant. There is no credit for this position and no credit for Eolo, though it is still quite possible he worked in this capacity, but with no way to confirm it.
- Il secondo tragico Fantozzi (1976) IMDb with no role. Not found after multiple searches.