# Little House on the Prairie star says brutal filming conditions left cast members unconscious

> Alison Arngrim recalls passing out on first day of 'Little House on the Prairie' filming.
- Title: Little House on the Prairie star says brutal filming…
- Summary: Alison Arngrim recalls passing out on first day of 'Little House on the Prairie' filming. Alison Arngrim and other 'Little House on the Prairie' cast members…
- Keywords: alison arngrim, little house on the prairie, simi valley, cast members, passing out, extreme heat, filming conditions, news, politics, Little, House, Prairie
- Source: Fox News — https://foxnews.com/entertainment/little-house-prairie-star-says-brutal-filming-conditions-left-cast-members-unconscious
- Author: Janelle Ash
- Published: 2026-10-16T00:00:00+00:00
- Read time: 1 min
- Topics: alison arngrim, little house on the prairie, simi valley, cast members, passing out, extreme heat, filming conditions, news, politics
## First day chaos
Alison Arngrim described her first day on set as complete chaos and confusion.

> Complete chaos and confusion
## Passing out on set
Alison Arngrim passed out on first day due to extreme heat and panic.

> I pass out
## First day panic
Alison Arngrim had panic attacks and massive hair curling before passing out.

> So, it was lots of panic and phone calls back and forth, and then massive curling of my hair
## Extreme heat
The set in Simi Valley was so hot that cast members passed out during filming.

> It was that hot
## Sean Penn story
Child actor Sean Penn passed out and never returned to work that day.

> He didn't wake up and come back to work. That was it. He was done for the day
## Other cast members
Multiple cast members passed out due to extreme heat during filming in Simi Valley.

> I was so grateful for that
## Heat effects
Cast members described extreme heat as 100 million degrees during filming.

> where it was 100 million degrees
## Key takeaway

Alison Arngrim and other 'Little House on the Prairie' cast members passed out due to extreme heat during filming in Simi Valley.