Declan O'Brien (I) (1965–2022)

Down 2,350 this week
Declan O'Brien was born on December 21, 1965. He was a writer and director, known for Alice Upside Down (2007), Rock Monster (2008) and Cyclops (2008). He died on February 16, 2022. See full bio »



(age 56)

Child Stars, Then and Now

Check out some of our favorite child stars from movies and television. See how many you recognize now that they're grown up.

See the gallery

Hollywood Romances: Our Favorite Couples

Check out some of our favorite couples in Hollywood.

See the full list

On Prime Video

User Lists

Related lists from IMDb users

a list of 36 images
created 07 Sep 2014
a list of 443 people
created 6 months ago
a list of 569 people
created 6 months ago
a list of 415 people
created 25 Mar 2018
a list of 108 people
created 02 Jul 2011

Do you have a demo reel?

Add it to your IMDb page

How Much Have You Seen?

How much of Declan O'Brien's work have you seen?
1 win. See more awards »


Known For

Rock Monster Writer
Cyclops Director
Monster Ark Writer


Hide Hide Show Show Writer (15 credits)
 2015 The Marine 4: Moving Target (Video) (based on characters created by)
 2014 Joy Ride 3: Roadkill (Video) (written by)
 2013 The Marine 3: Homefront (Video)
 2012 Wrong Turn 5: Bloodlines (Video) (written by)
 2012 Hijacked
 2011 Miami Magma (TV Movie)
 2011 Wrong Turn 4: Bloody Beginnings (Video) (written by)
 2008 Monster Ark (TV Movie) (written by)
 2008 Rock Monster (TV Movie) (screenplay)
 2007 Alice Upside Down (story)
 2007 Harpies (TV Movie)
 2007 Savage Planet (TV Movie) (screenplay)
 2005 Snakeman (TV Movie)
Show Show Director (9 credits)
Show Show Producer (5 credits)
Show Show Actor (1 credit)
Show Show Additional Crew (1 credit)
Show Show Self (7 credits)

Related Videos


Personal Details

Publicity Listings:

1 Article | See more »

Did You Know?


In wrong turn 3 left for dead there were behind the scene photos with Declan in the pictures with the cast.

Star Sign:


Contribute to This Page

Recently Viewed