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Seth Isaac Johnson

Acting

Born July 10, 2000 · Canada

IMDbWikipedia

Biography

Seth Isaac Johnson is a Canadian actor, recently known as Finn in 2025 YA Horror, R.L. Stine's Pumpkinhead and Pumpkinhead 2 and Max, in Megan Park's 2024 comedy-drama film My Old Ass, Shawn Raider in Supernatural, as well as the recurring role of Eugene in Season 2 of the hit series Firefly Lane. Early in his career, Johnson was notable for his recurring dramatic role as Denny Larsen in AMC's The Killing. Also as Danny in Nickelodeon's original TV movie Splitting Adam.

Source: Wikipedia · CC BY-SA

Filmography17 titles

Supernatural

2005as Shawn Raider

Mech-X4

2016as Langley

Firefly Lane

2021as Eugene

The Killing

2011as Denny Larsen

Once Upon a Time

2011as Young Hansel

Mr. Young

2011as Burlap Sack E.T.

Splitting Adam

2015as Danny

My Old Ass

2024as Max

R.L. Stine's Pumpkinhead

2025as Finn

Motive

2013as Phillip Harper

The Color of Rain

2014as Drew Kell

Love Amongst the Stars

2022as Bryce

R.L. Stine's Pumpkinhead 2

2026as Finn

Let's Get Physical

2022as Ben Martin

Into the Grizzly Maze

2015as Young Beckett

My Sweet Audrina

2016as Arden Lowe (age 15 years)

Love in Full Swing

2021as Hudson