In his interview with Soap Opera Digest, Eric Marstoff has some nice things to say about Tom:
Series star Tom Welling (Clark) directed the episode. "He did a terrific job," notes Martsolf. "He wasn't afraid to work until 4 o'clock in the morning, if he didn't feel the shot was perfect. It was hard for me to adjust to those kinds of hours, but [Welling] was truly relentless and seriously gave a damn about the character and why [Booster] is the way he is. [Welling] really brought it to life."
The rest of the interview can be found at Soap Opera Digest