Suits Season 3, Episode 5 ("Shadow of a Doubt") kicks off with Donna's (Sarah Rafferty) blazing dalliance with the British version of Harvey Specter (Gabriel Macht), Stephen Huntley (Max Beesley). The heat in the series scorches further with the Game of Thrones presence of Michelle Fairley as Ava Hessington. Things cool off towards the end of the episode, but viewers know something bigger is coming up.

Spoiler alert: This review contains spoilers for those who have not seen Suits Season 3, Episode 5, "Shadow of a Doubt." Read at your own risk.

This delightful Suits Season 3 episode brings together some favourite actors from past and present TV shows: Firefly, The Good Wife, Game of Thrones, and The Wire. "Shadow of a Doubt" also sets up the marking of the law firm's wall with Harvey Specter's name. (Welcome to Pearson Hardman Specter.)

Michelle Fairley on Suits Season 3 is a treat to Game of Thrones fans whose hearts broke after Fairley's Catelyn Stark died in the HBO series. Since the premiere, Pearson Darby has been figuring out a way to sort out Ava's legal cases involving her oil company.

Suits Season 3, Episode 5 Review: 'Shadow of a Doubt' Highlights

Business, career motivations, personal desires and important relationships intertwine in Suits Season 3.

1. Cameron Dennis ("The Good Wife's" recurring star Gary Cole) is back and so is the war of the egos. (More about Cameron's and Harvey's past next week.)

2. Stephen Huntley (Max Beesley) and Harvey were entirely on the same side for the first time since the premiere of Suits Season 3. Until Donna tells Harvey she's sleeping with the Brit (possibly the ex-fiancee of Harvey's ex, Dana Scott aka Scottie).

3. Mike Ross (Patrick J Adams) and Rachel (Meghan Markle) enjoy some family bonding over dinner with Mr and Mrs Zane. They also work on a case together. The case alludes to trust issues in relationships. Wendell Pierce (William Moreland aka The Bunk in "The Wire") is always a delight to see as Rachel's dad.

4. Louis Litt (Rick Hoffman) has another encounter with his frenemy, Nigel Nesbitt (Adam Godley). It does seem, however, that the two have found a common feline ground.

5. Jessica Pearson (Gina Torres) and Harvey work together -- again. The two work out a strategy to solve the Tony Gianopoulos vs Ava Hessington rivalry. The result puts Harvey's name on the door - finally! Viewers will see in the next episodes how Darby will take this development.

Suits Season 3, Episode 5, "Shadow of a Doubt" was written by Genevieve Sparling and directed by Felix Alcala. The lines are less clever and the pacing is not as sharp as in 'Conflict' last week. But the series in its entirety is progressing rather brilliantly.

There will be more Game of Thrones in next week's episode as Suits Season 3, Episode 6 will see Cameron Dennis still trying to stir trouble in Ava Hessington's business. Viewers are also looking forward to seeing how Jessica Pearson would react when she finds that she has been -- in Stephen's words -- digging her own grave. Then again, Harvey might see the wisdom in being on the same side as Jessica, eventually.

Check out the slideshow to see some popular Suits Season 3 posts on Tumblr.

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