There are many flashbacks to previous episodes in 7.18 Dirty Girls when Andrew describes Faith’s past to the potentials. The episodes include 3.03 Faith, Hope And Trick, Revelations, 3.13 The Zeppo, 3.14 Bad Girls, …

In three different episodes in a span of eight, Andrew is given the same joke. Someone tells him to show him something, and he rattles off several different, unrelated items:
In …

In 7.19 Empty Places, Giles says Andrew has a pan flute which he can use to summon demons. We saw this in 6.05 Life Serial.

In 7.18 Dirty Girls, Molly reminds Andrew that he’s not supposed to be telling stories anymore. Buffy demanded this in 7.16 Storyteller after he kept lying about the murder of Jonathan.

In Andrew’s flashback in 7.16 Storyteller he tells Warren/the First about a demon selling bizarre weapons. He mentions a “collapsible sword”. In the Angel episode 4.06 Spin The Bottle, Wesley buys a …

In 6.04 Flooded, Andrew says:

“I had nothing to do with the devil dogs. I trained flying demon monkeys to attack the school play. School play, dude!”

In 6.11 Gone, he tells …

The car scenes in 7.07 Conversations With Dead People featuring Jonathan and Andrew were actually filmed in a studio, with crew members shaking the car to make it look as though …

In 7.12 Potential, Andrew asks if they’re going to get the microwave fixed, a reference to 7.07 Conversations With Dead People when Dawn smashed the microwave after it went all evil. In …

Spike is obsessed with an onion flower served at the Bronze, which he mentions on several occasions. In 5.11 Triangle, he says to Xander:

“They have chicken wings, too. Also, a sort …

When he’s playing Dungeons and Dragons in 7.22 Chosen, it looks like the red cape that Andrew is wearing was the one Buffy wore when she dressed as Little Red Riding …

Andrew and Jonathan talk about a dream that they’ve been having in Mexico in 7.07 Conversations With Dead People. Andrew translates the dream’s phrase as:

“It eats you, starting with your …

In 7.09 Never Leave Me, Andrew says of Anya, “This one time I saw her having sex with Spike.” He’s referring to the events of 6.18 Entropy, when he saw the two …

Tom Lenk played Andrew Wells and Cyrus, one of Harmony’s minions, in 5.02 Real Me. Tom was born in Westlake Village, California, on June 16th, 1976. His full name is Thomas …

Tucker was the older brother of nerdy Andrew. Tucker attempted to ruin the Prom by setting hellhounds loose on the school, because he couldn’t get a date. He trained them …

Tom Lenk played two characters in Buffy - Cyrus in 5.02 Real Me and Andrew Wells in seasons six and seven. A small piece of continuity for these two characters is …

Andrew mentions Dawn’s past (covered in season five) in 7.16 Storyteller when he says:

“Dawn used to be a key. I don’t really know what that means.”