Question: how old is kenickie from grease?
Answer: But you might be surprised at just how old some of the actors actually were when they were starring as teenagers. The oldest high schooler in “Grease” was Stockard Channing (Rizzo), who was 33. John Travolta (Danny) was 23 and Jeff Conaway (Kenickie) was 26. Olivia Newton-John (Sandy) turned 29 during filming.