Una Chin-Riley is on the left portrayed by Rebecca Romijn. She was also portrayed by Majel Barret in the original pilot. Tysess is on the right, he is portrayed in 3D animation but is voiced by Daveed Diggs.

Round 1: 8/8

15. Una Chin-Riley served as the First Officer of the USS Enterprise under Captain Pike. The original "Number One", she also appears in Strange New Worlds. Efficient and an exemplar to others, but known as "Where fun goes to die" by the crew.

Vs.

18. Tysess is the first officer of the USS Dauntless under Admiral Janeway, he serves to temper her emotional responses and has to deal with several strange situations.

Adreek-Hu is on the left. He is depicted via 3D animation but is voiced by Tommie Earl Jenkins. Sylvia Tilly is on the right and is portrayed by Mary Wiseman.

Round 1: 3/8

21. Adreek-Hu was the original first officer of the USS Protostar. He is an Aurelian. Mostly seen in holographic recordings, he was captured alongside the rest of the Protostar's original crew.

Vs.

12. Sylvia Tilly was still an ensign when Saru made her his first officer aboard the USS Discovery. She did not retain this role under Captain Burnham, but was temporarily Rayner's XO when he commanded Discovery.