Mark McCullough is known for This Old House (1979), The White House Is Fake (2026) and This Old House: Trade School (2017).

Mark McCullough in Ask This Old House (2002)

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"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

2026 Fall TV and Streaming Watch Guide

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Streaming Stars, Then and Now

Kevin O'Connor and Mark McCullough in This Old House (1979)

Tom Silva, Richard Trethewey, Kevin O'Connor, and Jenn Nawada Evans in This Old House (1979)

Norm Abram, Richard Trethewey, Roger Cook, and Kevin O'Connor in This Old House: Trade School (2017)

Tom Silva, Richard Trethewey, Roger Cook, Kevin O'Connor, Mauro Henrique, Jenn Nawada Evans, Scott Caron, Mark McCullough, and Ross Trethewey in Ask This Old House (2002)

Mark McCullough(VI)

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