As I viewed the film, I observed that the short has a similar feel to the RKO comedy shorts Brown was currently starring in with Scottish born comedian Jack Kirkwood. The thing I noticed was that Tim Ryan and Jack Kirkwood slightly resembled each other, tall men with thin mustaches. Could it be that after Brown's initial short with Kirkwood ("Heart Troubles"), that maybe Columbia liked Wally enough to lure him away from RKO, and they gave him a one picture deal? I wish I knew the story behind this. After the completion of "French Fried Frolic", Brown returned to RKO to continue to appear in a handful of Kirkwood and Brown two-reelers for the next couple of years. I guess he didn't like it at Columbia.
Just for the record, Brown had co-starred with Alan Carney as RKO's answer to Abbott and Costello in a series of all-but-forgotten B-pictures a few years earlier. Some more notable than others are "Genius At Work" and "Zombies On Broadway" (both co-star Bela Lugosi).