Aside from Vic Morrow (Sgt. Saunders) and Rick Jason (Lt. Hanley), the only actors to appear as American soldiers in both the pilot and the finale were Pierre Jalbert (PFC Caje) and Jack Hogan (I)' (Kirby). Of the 152, total episodes Morrow appeared in 121 hours while Jason appeared in 109. Jalbert appeared in 115, and Hogan appeared in 111.
Paul Busch appears in his 33rd episode. As in all others, he plays a German. However, in this episode, and a couple others, he has two roles. As a radio operator in the prologue, and as an officer during the main story. As the officer, Busch has more lines than in any of his other appearances, and many of them are in English. Alas, he has one final death scene in this episode.
Last show of the series.
Robert Duval's third appearance. The first two were as Germans, this time as an American.