I saw Ted Knight in the final credits and could not figure out which character he was. Fortunately on second viewing he pooped up early as a lead's co-worker.

Season 3, episode 1.
Original air date: 30 August 1960.
In 1960 a series of earthquakes activate a tsunami, which heads towards Honolulu.
Cast: Jean Allison (Margareth North), Dennis Patrick (Emmett North), Cliff Hall (Commander Thomas A. Power), Ted Knight (woodruff), William Swan (Lenny), William Schallert (Dick Webb), William Quinn (Captain H. L. Morgan), Larry Burrell (Radio Announcer), John Newland (Himself- Host) and Margaret North).
From IMDB.

I turned 8 years old the week this first aired. I had 4 older sisters who loved to watch this show and insisted all of the lights be out when we did. I would whine to my Mom and my sisters would chime in, "You don't have to watch it ya big baby! Go up stairs to bed and let us enjoy it!"
Well the thought of being on the second floor all alone was far scarier. So I would stay and watch it, (when I dared peek from under a blanket). This one somehow I did actually see and it has stuck with me all these years.

I missed the fact that Ted Knight was in it until this viewing. Did anyone else find them self wanting to laugh when he talked? I could only envision him as Ted Baxter on Mary Tyler Moore trying to "act" intelligent!