Waiting to lower Hardison down, Eliot and Parker are not amused by his complaints. From "The Radio Job" episode of Leverage.
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It's the return of Nate's father. This character, seen here on "The Radio Job," is played by Tom Skerrit.
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Leverage Season 4 Episode 17 Quotes

Why ya'll always pushing me off of stuff. Don't I get a vote? I vote NO!

Hardison

Eliot: What does Latimer want at the patent office?
Hardison: What doesn't he want, cure for the common cold, warp drive, the water engine?