On "Suits", Markle played a lawyer named Rachel Zane, who fell in love with Mike Ross (Patrick J. Adams).
"In fact, I've probably forgotten about it", she added to a disbelieving audience.
Fiona Moore from Dublin described the Duchess as "relaxed". Black heels and a matching handbag were paired with her attire and she was once again seen sporting her signature messy bun hairstyle.
To kick off day two in Dublin, Markle wore a chic taupe green dress by French designer Roland Mouret.
The Duke and Duchess of Sussex, who are now on their first overseas trip as a married couple, were attending a function at the British Ambassador's residence on Tuesday when she allegedly broke a golden rule of royalty: stay out of politics.
Meghan Markle is in Dublin for a whirlwind two days of engagements.
The trip to Ireland is the Duke and Duchess of Sussex's first trip overseas as a married couple.
She and Harry explored Croke Park, before seeing national landmark the Book of Kells at Trinity College. Harry was forced to scold the child who tried to pull and touch his wife's hair. Prince Harry and Meghan Markle depart from their visit to the CHQ and Epic.
In the attraction's music gallery, the duchess immediately recognised the music of the show and the royal couple also listened to early recordings of traditional Irish music on gramophones.
Meghan, the Duchess of Sussex, has admitted she misses "Suits" since she gave up acting to be a royal.
"Prior to the start of the day, Their Royal Highnesses will meet a number of former Wimbledon Ladies Champions, as well as some of The Championships" ball boys and ball girls, to hear more about their experiences of the tournament'.