Even Oscar the Grouch showed up at Angel Stadium on Tuesday to trash the Houston Astros.

A person in a life-sized “Sesame Street” costume of the show’s trash can-dwelling green creature sat nine rows behind Houston’s dugout while the Los Angeles Angels finished their two-game series with the Astros.

Houston will get the full force of baseball fans’ displeasure over their sign-stealing scandal this season, and Anaheim was quite inhospitable to the Angels’ AL West rivals — just as Oakland was last weekend in the Astros’ first road series of the new season.

The relentless jeers haven’t done much to disrupt this veteran powerhouse of a ballclub, though. Houston won five of its six games on the season-opening California trip after beating the Angels 4-2 Tuesday on a ninth-inning homer by Carlos Correa, one of the top targets for most fans’ ire.

“They seem unfazed by all the jeers and all the booing,” said Houston manager Dusty Baker, who wasn’t with the club during the scandal years. “It helped them concentrate even more at the start of the year. This team is very secure in their abilities, and they’re secure on and off the field.”

The fans at both games in Anaheim incessantly booed the Astros veterans who were involved with the cheating scheme while winning the 2017 World Series over the Los Angeles Dodgers, who play just 30 miles up the I-5 freeway from Angel Stadium. Angels fans and Dodgers fans typically don’t get along, but they’re united behind this particular cause.

On Monday night, fans threw an inflatable trash can and a real trash can out of the elevated right-field stands and onto the Angel Stadium warning track. They also serenaded the Astros with chants, although “Cheaters!” was perhaps the most printable.

Anaheim’s fans displayed critical signs throughout the ballpark at both games, with sentiments along the lines of: “If you’re looking for a sign from God, the Astros probably stole it!”

Through it all, the Astros remained focused on pitching, hitting and defense — and now they’re off to another hot start as they begin the long pursuit of their fifth consecutive playoff appearance, which would extend their own franchise record.

“I love it,” Correa said of the Astros’ strong start. “From the moment everybody showed up to spring training and I looked at everybody, I knew the team was focused to go out there and compete and win games this year.”

José Altuve, Alex Bregman, Yuli Gurriel and Correa have borne the brunt of baseball fans’ displeasure since the scandal broke, and that hasn’t changed. Angels fans were mostly careful not to boo Astros catcher Martín Maldonado, who was with the Angels in 2017 and for most of the 2018 season before being traded to Houston.

“It’s been in Ohio as early as the mid-1850s at least, brought in as an ornamental plant because of its unique foliage and white flowers,” Gardner said. “It was actually planted in people’s landscaping, and it has been spreading.”

Along with the constant, usual jeering while at the plate, Bregman got a raft of boisterous boos in the third inning Tuesday when he questioned at length a called third strike by umpire Ángel Hernández on a pitch that appeared to be well outside the zone.

Baker lamented the world’s overall lack of civility after Houston blew a late lead and lost 7-6 to the Angels on Monday night, much to the fans’ pleasure.

“I think that sometimes we need to look at ourselves before you spew hate on somebody else,” Baker said. “It’s a sad situation for America, to me, when you hear things (like that). I mean, what are the kids supposed to think in the stands? And some of them are kids that are following their parents. It’s sad to me. People make mistakes. We paid for ours, and I wish they’d leave it alone.”