be a dead ringer for

be a dead ringer for somebody/something

to look very similar to someone or something He's a dead ringer for Bono from U2 - people often come up to him in the street and ask for his autograph.
See also: dead, ringer
References in periodicals archive ?
It casts Wood Harris as Hendrix; he may not be a dead ringer for the guitarist, but he gets the easygoing strut and dazed demeanor of a rock superstar down cold, and he's appropriately electric in the concert sequences.