Table:
0
A
B
C
D
E
1
Actor
Character
Title/Rank
Series
Years
2
David Suchet
Hercule Poirot
Various
1–13
1989–2013
3
Hugh Fraser
Arthur Hastings
Captain OBE
1–8, 13
1989–2002, 2013
4
Philip Jackson
James Japp
Chief Inspector
1–8, 13
1989–2001, 2013
5
Pauline Moran
Felicity Lemon
Secretary
1–3, 5–8, 13
1989–1991, 1993–2001, 2013
6
Zoë Wanamaker
Ariadne Oliver
Crime novelist
10–13
2006–2013
7
David Yelland
George
Butler
10–13
2006–2013

Questions and formulas:
Question: who is the actor of the character ariadne oliver?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="ariadne oliver"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="ariadne oliver"),1))
Level: medium