6.2
/10
Wally Kostis is a fictional character portrayed by Chet Grissom in the TV series Mad Men.
They appear in 1 episodes out of a total of 92 aired

Wally Kostis

by Chet Grissom

character

Episodes1

  • 8.3
    /10

    A Night to Remember
    episode S2.E8 september 2008
    Betty becomes suspicious that Don is having an affair after her conversation with Jimmy Barrett, Joan helps out in the television department, and Peggy helps the church with a dance flyer.