Become an IMDbPro Member Today

Get access to the leading information resource for the entertainment industry

Find Contacts & Representation

Showcase Yourself

Follow Industry Trends

Stay connected with contact details for over 300,000 industry professionals and companies

Manage your photos and the credits you're Known For on IMDbPro, IMDb and Amazon Video

Keep up to date with entertainment news and follow in-development titles not available on IMDb

Start your 30-Day free trial
Already a member?

Romualdo Castillo

Actor

Romualdo Castillo is a charismatic upcoming multilingual actor best known for is performances in the "CBS" prime time TV Show "Hawaii Five-O" as Guillermo and Koslov. He was raised in France and ... read full biography
Details
6' 0" (1.83m) | Performs 25-45 & 11 more performer profile details
Guilds
SAG-AFTRA
Images (35)
Romualdo CastilloHAWAII FIVE-O Season 8 Episode 8Romualdo CastilloRomualdo CastilloRomualdo CastilloRomualdo Castillo
Trending
STARmeter
Members only

Contacts

Become a member to access contact information

Filmography Edit

Filter by profession

Clear
8 titles
Films in Production (1 title) Budget Status
Jungle Cruise (2019)
Animal Vendor Animal Vendor   See fewer
Filming
Past Film & Video (6 titles) Budget U.S. Gross Worldwide
Jurassic World: Fallen Kingdom (2018)
Boat Crew (uncredited) Boat Crew (uncredited)   See fewer
$170MM
$411MM
$1.28B
The Cutting Truth (2017)
Ronald Armstrong Ronald Armstrong   See fewer
$5K
Snatched (2017)
Handsome Colombian (uncredited) Handsome Colombian (uncredited)   See fewer
$42MM
$46MM
I Love That Crazy Little Thing (2016)
The Cowboy The Cowboy   See fewer
Men vs Women (2016)
(Short) - Pierre Pierre   See fewer
Bacon Flavored Girlfriend (2015)
Darren (as Romulado Castillo) Darren (as Romulado Castillo)   See fewer
Past Television (1 title) Episodes
Hawaii Five-0 (2015–2017)
(TV Series) - Guillermo / Koslov (2 episodes, 2015) Guillermo / Koslov (2 episodes, 2015)   See fewer
He Kaha Lu'u Ke Ala, Mai Ho'okolo Aku (Dec 1, 2017) Season 8, Episode 8 - Guillermo Guillermo   See fewer
Ua 'aihue (Jan 9, 2015) Season 5, Episode 11 - Koslov (as Romulado Castillo) Koslov (as Romulado Castillo)   See fewer
2

Additional Credits

* not verified by IMDb
Commercials (3 titles) Role / Position Company / Director
I KNOW A GUY *
THE MONEY GUY
FIRST HAWAIIAN BANK
LET HAWAII HAPPEN / HONEY MOON ON MAUI *
MAÎTRE'D
HAWAII VISITORS BUREAU
LIVING IN THE MOMENT / ON THE ISLAND OF MAUI *
VISITOR / LEAD
HAWAII VISITORS BUREAU / BLAIR HAYES
Film (3 titles) Role / Position Company / Director
NO INTENT *
DETECTIVE TESTA / LEAD
Dir. Neil Sullivan
FIFTY *
SERIAL LILLER / LEAD
Dir. David Whitney
VOICES BEHIND BARBED WIRE *
FBI AGENT
Dir. Ryan Kawamoto
There was an issue loading this tab.
There was an issue loading this tab.
There was an issue loading this tab.
There was an issue loading this tab.
There was an issue loading this tab.
There was an issue loading this tab.
There was an issue loading this tab.

STARmeter

Members only

Become a member to access additional data