Ronald is a fictional character portrayed by Jay Brian Winnick in the TV series How I Met Your Mother.
They appear in 1 episodes out of a total of 208 aired
Episodes1
Bad News
episode S6.E13 january 2011Marshall suspects that he is the reason Lily can't get pregnant after meeting a fertility doctor who also happens to be Barney's doppelganger. Meanwhile, Robin's embarrassing past is revealed at work by her former co-anchor.
