So did I until I twigged the last two were Bruce Willis and Jude Law then Google was my friend. 
walter bruce willis
david jude law
william brad pitt
robyn rihanna fenty
well done judd you are of course exactly correct
Should be a fairly simple one, haven’t had time to do a lot of research. 
Who is the odd one out?
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Letters Used:
Hi
A please
can i have an E please
Who is the odd one out?
A - A -/- - - -
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- -/- A - - - A
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E - -/- - - - E -
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A - -/- E - - A - -
Letters Used: A, E,
can i have a L please
Who is the odd one out?
A L A -/- - - -
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- -/- A L - - A
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E - -/- - - - E -
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A - -/L E - - A - -
Letters Used: A, E, L,
I please
Who is the odd one out?
A L A -/- - - -
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- -/- A L - - A
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E - -/- - - - E -
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A - -/L E - - A - -
Letters Used: A, E, L,
Not Used: I,
S please
can i have a T please
Who is the odd one out?
A L A -/- - - -
S - - T T/- A L - - A
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E - -/- - - T E -
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A - -/L E - - A - -
Letters Used: A, E, L, S, T,
Not Used: I,
can i have an O please
Who is the odd one out?
A L A -/- - - -
S - O T T/- A L - - A
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E - -/- - - T E -
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A - -/L E - - A - -
Letters Used: A, E, L, S, T, O,
Not Used: I,
can i have a M please
Who is the odd one out?
A L A -/- - - -
S - O T T/- A L - - A
- E - -/- - - T E -
M A - -/L E - - A - -
Letters Used: A, E, L, S, T, O, M
Not Used: I,
can i have a R please
Who is the odd one out?
A L A -/R - - -
S - O T T/- A L - - A
- E - -/- - - T E R
M A R -/L E - - A R -
Letters Used: A, E, L, S, T, O, M, R
Not Used: I,
can i have a B please