Such cards may be played (10)

I believe the answer is:

characters

I'm a little stuck... Click here to teach me more about this clue!

'such cards' is the definition.
'characters' can be an answer for 'cards' (both can mean eccentric or amusing people). I'm not certain of the 'such' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for characters that I've seen before include "Signs" , "Persons in a play/book" , "eccentric people?" , "Eccentrics" , "Roles; letters" .)

I've seen this clue in The Globe and Mail.

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