Alex O'loughlin's Hawaiian home came under threat on Monday (06Dec13) after a fire broke out in the property's garage.
Emergency workers from the Honolulu Fire Department raced to the Hawaii Five-0 star's house on Oahu after a blaze blew off the outbuilding's door.
Fifty firefighters were required to tackle the flames, which caused an estimated $110,000 worth of damage, according to People.com.
The actor was not at home at the time of the fire and no one was injured.
Fire Department Captain Terry Seelig tells the website, "The first company arriving found smoke and flame coming out of the garage. The fire appears to have caused heavy damage to the garage and its contents and nothing to the house."