Mr. Ossias is a fictional character portrayed by Greg Lewis in the TV series How I Met Your Mother.
They appear in 1 episodes out of a total of 208 aired
Episodes1
Slapsgiving 2: Revenge of the Slap
episode S5.E9 november 2009Barney freaks out when Marshall bequeaths a "slap bet" slap to Ted and Robin. Meanwhile, Lily's estranged father shows up for Thanksgiving.