Tommy Lee Jones portrays the character of Mike Roark, the head of the Office of Emergency Management who leads the response to the volcanic eruption.
Anne Heche takes on the role of Dr. Amy Barnes, a seismologist who works alongside the emergency response team to understand and combat the volcanic threat.
Gaby Hoffmann plays Kelly Roark, the daughter of Mike Roark, who finds herself in the midst of the chaos caused by the volcanic eruption.
Don Cheadle portrays Emmit Reese, a city official who helps coordinate the evacuation efforts during the volcanic crisis.
Jacqueline Kim embodies the character of Dr. Jaye Calder, a scientist who provides crucial expertise on volcanic activity to the emergency response team.
Keith David takes on the role of Lt. Ed Fox, a police officer who works alongside the emergency responders to maintain order during the disaster.
John Corbett portrays Norman Calder, a firefighter who bravely battles the volcanic eruptions to save lives in the city.
Michael Rispoli plays the character of Gator Harris, a construction worker who becomes involved in the efforts to contain the volcanic threat.
John Carroll Lynch embodies the character of Stan Olber, a subway worker who faces the dangers of the volcanic eruption underground.
Marcello Thedford portrays Kevin, a member of the emergency response team who works to ensure the safety of the city's residents.
Laurie Lathem plays Rachel, a resident of Los Angeles who must navigate the chaos and destruction caused by the volcanic eruption.
Bert Kramer appears as the L.A. Fire Chief, a leader in the fire department who coordinates efforts to combat the fires ignited by the volcanic eruptions.
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