Lyle Lettau

Acting·September 25, 1994 — 31 years old·Flesherton, Ontario, Canada

Lyle Lettau (born O'Donohoe; September 25, 1994) is a Canadian actor, best known for having portrayed Tristan Milligan in the Canadian teen drama show Degrassi.

Known For

iZombie

Arthur

Degrassi

Degrassi: Next Class

Super Why!

Degrassi: Don't Look Back

2015·8.0

Degrassi: Minis

2006·9.2

Filmography · 9

—Spring BloomBirdie 2025Degrassi: Whatever It TakesSelf 2016Degrassi: Next ClassTVTristan Milligan 2015Degrassi: Don't Look BackTristan Milligan 2015iZombieTVBitchkraft 2007Super Why!TVThe Boy Who Drew Cats (voice)2006Degrassi: MinisTVTristan Milligan 2001DegrassiTVTristan Milligan 1996ArthurTVAlan "The Brain" Powers (voice)