This is the third and final appearance of Frank Sully in the series. Unlike the disreputable drunk he plays here, he plays a cab driver in his two earlier appearances in season 1 and season 2.
This is the third and final appearance of Marjorie Reynolds in the series. Although she's Kathy Gregory's mother here, In seasons 4 and 5, she plays Mrs. Murdock, the mother of little Chuckie, the Cleavers' neighbor.
Last appearance of Frank Bank as Clarence "Lumpy" Rutherford in the series.
When Kathy's father tells Wally to leave, he then closes the door and then opens it again to throw Wally's jacket out after him. As he does so, the shadow of the jacket is visible against the painted background meant to show the view across the street.
The last dart that Beaver throws just misses being a Triple 20, the highest value on the dartboard.