This was Bobby Darin in this episode of Wagon Train.
Darin was an wounded ex-convict who makes his way into the orphan express on the wagon train.
Abigail, played by Besty Hale, is the little orphan girl who finds him, teases him, then befriends him.
Whit Bissell appears as a concerned figure who is against Darin being in the wagon train with the orphans, but with no crime they know of to charge him with, what are the wagoneers to do? They can't imprison Darin, so they must allow him to be.
Through it all, it was Darin who worked this predictable episode. Abigail constantly clings to him, he does nothing to encourage her.
Then Darin learns Abigail has a secret of her own, tho a bit vague in its reasoning, Darin still manages the moment.
Even the final conclusion to the story, its all Darin. Watching the episode is worth it for him and him alone.
This is the first Wagon Train episode I have sat and watched and knowing how the show will progress (from cast changes to main actors barely appearing) this episode is a good introduction.
Blink and you'll miss the two second appearance of Robert Fuller.