dead ringer for someone
dead ringer for (someone)
A person or thing that bears a strong resemblance to someone or something else. Susie was such a dead ringer for Kate Winslet that sometimes people would ask her for her autograph.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
(dead) ringer (for someone)
n. someone who is an exact duplicate of someone else. (see also ringer.) You are sure a dead ringer for my brother.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.