The joy that covers Wayne Brady's face at the sight of Laura Hall is extremely touching. You can tell that she is a joy to Drew, as well.
One session of Party Quirks in the UK version had part-time performer Jim Meskimen as a "reminiscing old man" - even after he'd been guessed out, he took a little time to address Clive without breaking character. Maybe it was a jab at Clive's advanced hairline, but for all intents and purposes it worked.
In the US version, the infamous "heavily pregnant Colin at the amusement park" session of Sound Effects ended with Drew tossing US$100 bills at Colin and Ryan - who agreed that the two ladies providing the sounds were the ones who'd earned that money, and got up to hand the dollar bills to them.
During another segment of Drew giving out $100 bills, Ryan catches one, then gets up and places the bill on the band's keyboard.
The Foreign Film Dub session with special guest Sid Caesar led to a few Show Stopper moments, not the least of which was Sid himself giving a symbolic nod to Colin's "garlic press" line, acknowledging the resident Pungeon Master.
The standing ovation when Sid Caesar comes out for his guest appearance - it lasted so long that it had to be cut down for broadcast.
Ryan's contribution to the Colin Hoedown, and Colin hugging him afterwards.
During one episode, a woman in the audience is wearing a shirt that reads "Wayne, please sing to me!" Drew does in fact select her from the audience during Duet for Wayne and Chip to sing to. About halfway through the song, Wayne starts to dance with her. The expression of absolute joy on her face through the entire thing is wonderful.
From the 100th episode's Scenes From A Hat: After 100 episodes of repeatedly making fun of Colin being bald, the scene drawn is "A brief glimpse into the dreams of Colin Mochrie." After a skit of Greg rubbing his hair, with Colin looking visibly upset at the umpteenth bald joke made at his expense (the studio audience even goes "awww" when Colin looks at them), Ryan's contribution is himself, Wayne, and Greg, all bald and screaming. Also counts as a Funny Moment.
While not a straight example, the "Newsflash" session that started with the green screen showing the studio cam's current view instead of the archive footage intended, leading to Ryan and Chip reaching to the side to make gestures around Colin's head. It's so juvenile that it's adorable.
In another playing of Newsflash, the green screen is showing clips of Ryan from previous episodes. Colin eventually figures it out as always, and when Drew asks him what he thinks is behind him, Colin's answer is a straight-laced "I think it's my good friend Ryan Stiles".
Colin and Ryan in general are just plain heartwarming, as the two have been friends and colleagues in improv for years. That's why they're so great together, because they know each other inside and out and can play against each other perfectly.
This game of Infomercial had Colin place a device in Ryan's mouth and prepare to turn a knob on the side. Suddenly Drew begins yelling in protest, recognizing the device as dangerous. Fortunately the one in question was empty.
Of course, this being Whose Line, it quickly turns into a moment of funny as Ryan plays it off with the crack "Someone wants his own show!"
In one episode, Drew nearly choked on an Altoid mint, and slumped over his desk as he attempted to get it out. Wayne looked extremely concerned about him— he even called out "Drew, do you...?" Drew had suffered a heart attack some time earlier, which makes his concern for him even more heartwarming.
The look on Wayne's face when Lassie trots on-stage as a special guest Duet subject. He's like a little kid, it's adorable.
And Ryan in the back just melts. Ryan's noted to be a big dog lover in Real Life.
Ryan's performance as a lost toddler in a game of Weird Newscasters just wants to make you go "awww..."
During the Body Odor Hoedown Ryan experiences an Epic Fail and can't come up with a line. To give him a hand Drew comes up and stands behind Ryan and sings a second verse while Ryan lip-synchs it.
A meta-moment before the show even started: executives didn't want Ryan and Colin to be on the show, thinking they were "too old" to appeal to a younger audience. Drew put his foot down and refused to do the show if they weren't involved. Of course, this paid off immensely, as the wealth of examples on all these Whose Line pages can prove.
In one "Party Quirks", Ryan's quirk was that he was excited by ugliness. During the scene, he was all flustered by Drew. After the game, Drew said in a mock dejected manner: "A thousand points, that's all I'm good for is giving points." Ryan responded: "Hey, buddy...", and defiantly ripped up the card which contained that suggestion.
Colin: Hey, that's mine!
When a playing of "Superheroes" began, Drew genuinely complimented Colin:
Drew: One of my favorite guys in the whole wide world, Colin Mochrie, is gonna start this. (audience cheers/applauds; Colin smiles) Never meet a nicer man.
One duet had Wayne and Chip singing to an old woman named Phyllis in the style of The Bee Gees. After the song concluded, Phyllis was heard to tell Drew, Wayne, and Chip, "I just loved it" and variants thereof. It's not often the audience members directly tell the performers that, so it's a sweet moment.
Drew: Some days, you just love comin' to work.
In "Weird Newscasters", after Ryan essentially called Drew lower on the evolutionary scale than a caveman and an ape, Drew called Ryan a freak multiple times in retaliation. After "Narrate":
Drew: (mopey) A thousand points, everybody. Ten thousand points to Ryan, I'm sorry I called you a freak. Ryan: (makes ape noises) Drew: You're not a freak, you're my friend. I shouldn't have called you a freak on national TV. Ryan: ...And?? Drew: ...I love you. Ryan: All right, good enough. Wayne: "A very special Whose Line is it Anyway?." Drew: I did, I felt bad during the whole show- the whole scene.
In one "Scenes From a Hat", one of the scenes is "What your wife is saying right now." Instead of making a joke, Wayne came out and said, "I love my husband, Wayne Brady." The audience "awwwws".