look like a ringer
look like a (dead) ringer for (someone)
To bear a strong resemblance to someone; to look exactly like someone else. People sometimes ask Susie for her autograph because she looks like a ringer for Kate Winslet. Wow, you look like a dead ringer for my cousin Martin—it's actually really eerie!
look like a (dead) ringer
(for someone) Go to a (dead) ringer (for someone).